InvalidProjectFileException thrown for shared projects (.shproj) when doing a workload restore

### Describe the bug
When running `dotnet workload restore` on Ubuntu, the command will throw an `InvalidProjectFileException` on shared projects (.shproj file)

### To Reproduce
Create a new solution including a Shared Project, and run `dotnet workload restore` on Ubuntu 24.04.
### Exceptions (if any)
sylvain@ubuntu:~/MyProject$ dotnet workload restore
Unhandled exception: Microsoft.Build.Exceptions.InvalidProjectFileException: The imported file "$(MSBuildExtensionsPath32)/Microsoft/VisualStudio/v$(VisualStudioVersion)/CodeSharing/Microsoft.CodeSharing.Common.Default.props" does not exist and appears to be part of a Visual Studio component. This file may require MSBuild.exe in order to be imported successfully, and so may fail to build in the dotnet CLI. /home/sylvain/MyProject/MySharedProject/MySharedProject.shproj
at Microsoft.Build.Shared.ProjectErrorUtilities.ThrowInvalidProject(String errorSubCategoryResourceName, IElementLocation elementLocation, String resourceName, Object[] args)
at Microsoft.Build.Shared.ProjectErrorUtilities.ThrowInvalidProject[T1](IElementLocation elementLocation, String resourceName, T1 arg0)
at Microsoft.Build.Evaluation.Evaluator`4.ExpandAndLoadImportsFromUnescapedImportExpression(String directoryOfImportingFile, ProjectImportElement importElement, String unescapedExpression, Boolean throwOnFileNotExistsError, List`1& imports)
at Microsoft.Build.Evaluation.Evaluator`4.ExpandAndLoadImportsFromUnescapedImportExpressionConditioned(String directoryOfImportingFile, ProjectImportElement importElement, List`1& projects, SdkResult& sdkResult)
at Microsoft.Build.Evaluation.Evaluator`4.ExpandAndLoadImports(String directoryOfImportingFile, ProjectImportElement importElement, SdkResult& sdkResult)
at Microsoft.Build.Evaluation.Evaluator`4.EvaluateImportElement(String directoryOfImportingFile, ProjectImportElement importElement)
at Microsoft.Build.Evaluation.Evaluator`4.PerformDepthFirstPass(ProjectRootElement currentProjectOrImport)
at Microsoft.Build.Evaluation.Evaluator`4.Evaluate()
at Microsoft.Build.Evaluation.Evaluator`4.Evaluate(IEvaluatorData`4 data, Project project, ProjectRootElement root, ProjectLoadSettings loadSettings, Int32 maxNodeCount, PropertyDictionary`1 environmentProperties, ILoggingService loggingService, IItemFactory`2 itemFactory, IToolsetProvider toolsetProvider, IDirectoryCacheFactory directoryCacheFactory, ProjectRootElementCacheBase projectRootElementCache, BuildEventContext buildEventContext, ISdkResolverService sdkResolverService, Int32 submissionId, EvaluationContext evaluationContext, Boolean interactive)
at Microsoft.Build.Execution.ProjectInstance.Initialize(ProjectRootElement xml, IDictionary`2 globalProperties, String explicitToolsVersion, String explicitSubToolsetVersion, Int32 visualStudioVersionFromSolution, BuildParameters buildParameters, ILoggingService loggingService, BuildEventContext buildEventContext, ISdkResolverService sdkResolverService, Int32 submissionId, Nullable`1 projectLoadSettings, EvaluationContext evaluationContext, IDirectoryCacheFactory directoryCacheFactory)
at Microsoft.Build.Execution.ProjectInstance..ctor(String projectFile, IDictionary`2 globalProperties, String toolsVersion, String subToolsetVersion, ProjectCollection projectCollection, Nullable`1 projectLoadSettings, EvaluationContext evaluationContext, IDirectoryCacheFactory directoryCacheFactory, Boolean interactive)
at Microsoft.Build.Execution.ProjectInstance..ctor(String projectFile, IDictionary`2 globalProperties, String toolsVersion)
at Microsoft.DotNet.Workloads.Workload.Restore.WorkloadRestoreCommand.RunTargetToGetWorkloadIds(IEnumerable`1 allProjects)
at Microsoft.DotNet.Workloads.Workload.Restore.WorkloadRestoreCommand.Execute()
at System.CommandLine.Invocation.InvocationPipeline.Invoke(ParseResult parseResult)
at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, TimeSpan startupTime, ITelemetry telemetryClient)

### Further technical details
- Include the output of `dotnet --info`
sylvain@ubuntu:~/MyProject$ dotnet --info
.NET SDK:
Version: 8.0.300
Commit: 326f6e68b2
Workload version: 8.0.300-manifests.c1c70047
MSBuild version: 17.10.4+10fbfbf2e

Runtime Environment:
OS Name: ubuntu
OS Version: 24.04
OS Platform: Linux
RID: linux-x64
Base Path: /home/sylvain/.dotnet/sdk/8.0.300/

.NET workloads installed:
There are no installed workloads to display.

Host:
Version: 8.0.5
Architecture: x64
Commit: 087e15321b

.NET SDKs installed:
8.0.300 [/home/sylvain/.dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.5 [/home/sylvain/.dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.5 [/home/sylvain/.dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
DOTNET_ROOT [/home/sylvain/.dotnet]

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info