Signing during test project builds

When we build this repo on RHEL9 CI some test projects fail to build due to RHEL9 crypto policy not allowing the RSA+SHA1 signing.

Is the signing functionally required for these tests?

The failures include: `MinimalSampleFSharp`

```
FSC : error FS2014: A problem occurred writing the binary '/home/tester/aspnetcore/artifacts/obj/MinimalSampleFSharp/Release/net9.0/MinimalSampleFSharp.dll': Error while writing debug directory entry: Warning: A call to SignFile failed (error:03000098:digital envelope routines::invalid digest) [/home/tester/aspnetcore/src/Http/samples/MinimalSampleFSharp/MinimalSampleFSharp.fsproj]
```

And `Microsoft.AspNetCore.Mvc.DataAnnotations.Test/Microsoft.AspNetCore.Mvc.IntegrationTests/Microsoft.AspNetCore.OpenApi.Microbenchmarks` when calling the compiler:
```
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : Unhandled exception. Interop+Crypto+OpenSslCryptographicException: error:03000098:digital envelope routines::invalid digest [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) Unhandled exception. Interop+Crypto+OpenSslCryptographicException: error:03000098:digital envelope routines::invalid digest
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Interop.Crypto.RsaSignHash(SafeEvpPKeyHandle pkey, RSASignaturePaddingMode paddingMode, IntPtr digestAlgorithm, ReadOnlySpan`1 hash, Span`1 destination) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Interop.Crypto.RsaSignHash(SafeEvpPKeyHandle pkey, RSASignaturePaddingMode paddingMode, IntPtr digestAlgorithm, ReadOnlySpan`1 hash, Span`1 destination)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at System.Security.Cryptography.RSAOpenSsl.TrySignHash(ReadOnlySpan`1 hash, Span`1 destination, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding, Boolean allocateSignature, Int32& bytesWritten, Byte[]& signature) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at System.Security.Cryptography.RSAOpenSsl.TrySignHash(ReadOnlySpan`1 hash, Span`1 destination, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding, Boolean allocateSignature, Int32& bytesWritten, Byte[%5D& signature)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at System.Security.Cryptography.RSAOpenSsl.SignHash(Byte[] hash, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at System.Security.Cryptography.RSAOpenSsl.SignHash(Byte[%5D hash, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.SigningUtilities.CalculateRsaSignature(IEnumerable`1 content, RSAParameters privateKey) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.SigningUtilities.CalculateRsaSignature(IEnumerable`1 content, RSAParameters privateKey)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.DesktopStrongNameProvider.<>c__DisplayClass12_0.b__0(IEnumerable`1 content) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.DesktopStrongNameProvider.<>c__DisplayClass12_0.b__0(IEnumerable`1 content)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at System.Reflection.PortableExecutable.PEBuilder.Sign(BlobBuilder peImage, Blob strongNameSignatureFixup, Func`2 signatureProvider) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at System.Reflection.PortableExecutable.PEBuilder.Sign(BlobBuilder peImage, Blob strongNameSignatureFixup, Func`2 signatureProvider)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.Cci.PeWriter.WritePeToStream(EmitContext context, CommonMessageProvider messageProvider, Func`1 getPeStream, Func`1 getPortablePdbStreamOpt, PdbWriter nativePdbWriterOpt, String pdbPathOpt, Boolean metadataOnly, Boolean isDeterministic, Boolean emitTestCoverageData, Nullable`1 privateKeyOpt, CancellationToken cancellationToken) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.Cci.PeWriter.WritePeToStream(EmitContext context, CommonMessageProvider messageProvider, Func`1 getPeStream, Func`1 getPortablePdbStreamOpt, PdbWriter nativePdbWriterOpt, String pdbPathOpt, Boolean metadataOnly, Boolean isDeterministic, Boolean emitTestCoverageData, Nullable`1 privateKeyOpt, CancellationToken cancellationToken)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.Compilation.SerializePeToStream(CommonPEModuleBuilder moduleBeingBuilt, DiagnosticBag metadataDiagnostics, CommonMessageProvider messageProvider, Func`1 getPeStream, Func`1 getMetadataPeStreamOpt, Func`1 getPortablePdbStreamOpt, PdbWriter nativePdbWriterOpt, String pdbPathOpt, RebuildData rebuildData, Boolean metadataOnly, Boolean includePrivateMembers, Boolean isDeterministic, Boolean emitTestCoverageData, Nullable`1 privateKeyOpt, CancellationToken cancellationToken) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.Compilation.SerializePeToStream(CommonPEModuleBuilder moduleBeingBuilt, DiagnosticBag metadataDiagnostics, CommonMessageProvider messageProvider, Func`1 getPeStream, Func`1 getMetadataPeStreamOpt, Func`1 getPortablePdbStreamOpt, PdbWriter nativePdbWriterOpt, String pdbPathOpt, RebuildData rebuildData, Boolean metadataOnly, Boolean includePrivateMembers, Boolean isDeterministic, Boolean emitTestCoverageData, Nullable`1 privateKeyOpt, CancellationToken cancellationToken)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.Compilation.SerializeToPeStream(CommonPEModuleBuilder moduleBeingBuilt, EmitStreamProvider peStreamProvider, EmitStreamProvider metadataPEStreamProvider, EmitStreamProvider pdbStreamProvider, RebuildData rebuildData, Func`2 testSymWriterFactory, DiagnosticBag diagnostics, EmitOptions emitOptions, Nullable`1 privateKeyOpt, CancellationToken cancellationToken) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.Compilation.SerializeToPeStream(CommonPEModuleBuilder moduleBeingBuilt, EmitStreamProvider peStreamProvider, EmitStreamProvider metadataPEStreamProvider, EmitStreamProvider pdbStreamProvider, RebuildData rebuildData, Func`2 testSymWriterFactory, DiagnosticBag diagnostics, EmitOptions emitOptions, Nullable`1 privateKeyOpt, CancellationToken cancellationToken)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CommonCompiler.CompileAndEmit(TouchedFileLogger touchedFilesLogger, Compilation& compilation, ImmutableArray`1 analyzers, ImmutableArray`1 generators, ImmutableArray`1 additionalTextFiles, AnalyzerConfigSet analyzerConfigSet, ImmutableArray`1 sourceFileAnalyzerConfigOptions, ImmutableArray`1 embeddedTexts, DiagnosticBag diagnostics, ErrorLogger errorLogger, CancellationToken cancellationToken, CancellationTokenSource& analyzerCts, AnalyzerDriver& analyzerDriver, Nullable`1& generatorTimingInfo) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CommonCompiler.CompileAndEmit(TouchedFileLogger touchedFilesLogger, Compilation& compilation, ImmutableArray`1 analyzers, ImmutableArray`1 generators, ImmutableArray`1 additionalTextFiles, AnalyzerConfigSet analyzerConfigSet, ImmutableArray`1 sourceFileAnalyzerConfigOptions, ImmutableArray`1 embeddedTexts, DiagnosticBag diagnostics, ErrorLogger errorLogger, CancellationToken cancellationToken, CancellationTokenSource& analyzerCts, AnalyzerDriver& analyzerDriver, Nullable`1& generatorTimingInfo)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CommonCompiler.RunCore(TextWriter consoleOutput, ErrorLogger errorLogger, CancellationToken cancellationToken) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CommonCompiler.RunCore(TextWriter consoleOutput, ErrorLogger errorLogger, CancellationToken cancellationToken)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CommonCompiler.Run(TextWriter consoleOutput, CancellationToken cancellationToken) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CommonCompiler.Run(TextWriter consoleOutput, CancellationToken cancellationToken)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CSharp.CommandLine.Csc.<>c__DisplayClass1_0.b__0(TextWriter tw) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CSharp.CommandLine.Csc.<>c__DisplayClass1_0.b__0(TextWriter tw)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CSharp.CommandLine.Csc.Run(String[] args, BuildPaths buildPaths, TextWriter textWriter, IAnalyzerAssemblyLoader analyzerLoader) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CSharp.CommandLine.Csc.Run(String[%5D args, BuildPaths buildPaths, TextWriter textWriter, IAnalyzerAssemblyLoader analyzerLoader)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CommandLine.BuildClient.RunCompilation(IEnumerable`1 originalArguments, BuildPaths buildPaths, TextWriter textWriter, String pipeName) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CommandLine.BuildClient.RunCompilation(IEnumerable`1 originalArguments, BuildPaths buildPaths, TextWriter textWriter, String pipeName)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CommandLine.BuildClient.Run(IEnumerable`1 arguments, RequestLanguage language, CompileFunc compileFunc, CompileOnServerFunc compileOnServerFunc, ICompilerServerLogger logger) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CommandLine.BuildClient.Run(IEnumerable`1 arguments, RequestLanguage language, CompileFunc compileFunc, CompileOnServerFunc compileOnServerFunc, ICompilerServerLogger logger)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CSharp.CommandLine.Program.MainCore(String[] args) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CSharp.CommandLine.Program.MainCore(String[%5D args)
/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets(89,5): error : at Microsoft.CodeAnalysis.CSharp.CommandLine.Program.Main(String[] args) [/home/tester/aspnetcore/src/Mvc/Mvc.DataAnnotations/test/Microsoft.AspNetCore.Mvc.DataAnnotations.Test.csproj]
##vso[task.logissue type=error;sourcepath=/home/tester/aspnetcore/.dotnet/sdk/9.0.100-preview.7.24358.6/Roslyn/Microsoft.CSharp.Core.targets;linenumber=89;columnnumber=5;code=;](NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.CodeAnalysis.CSharp.CommandLine.Program.Main(String[%5D args)
```

cc @dougbu @omajid