Unable to analyze CHPE, ARM64EC, ARM64X binaries (System.InvalidOperationException: Unknown machine type!)

Describe the bug
In trying to use SizeBench against an ARM64EC binary, I hit the following exception:

Exception information: 
System.InvalidOperationException: Unknown machine type! 
HRESULT: 0x80131509 
   at SizeBench.AnalysisEngine.DIAInterop.DIAAdapter..ctor(Session session, String pdbPath) in /_/src/SizeBench.AnalysisEngine/DIAInterop/DIAAdapter.cs:line 176
   at SizeBench.AnalysisEngine.Session.InitializeDIAThread() in /_/src/SizeBench.AnalysisEngine/Session.cs:line 164 
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location --- 
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread) 
--- End of stack trace from previous location --- 
   at SizeBench.AnalysisEngine.Session.Create(String binaryPath, String pdbPath, SessionOptions options, ILogger sessionLogger) in /_/src/SizeBench.AnalysisEngine/Session.cs:line 117
   at SizeBench.AnalysisEngine.Session.Create(String binaryPath, String pdbPath, SessionOptions options, ILogger sessionLogger) in /_/src/SizeBench.AnalysisEngine/Session.cs:line 124
   at SizeBench.GUI.SessionFactory.CreateSession(String binaryPath, String pdbPath, SessionOptions sessionOptions, ILogger logger) in D:\a\1\s\src\SizeBench.GUI\SessionFactory.cs:line 24
   at SizeBench.GUI.ViewModels.MainWindowViewModel.<>c__DisplayClass51_0.<<OpenSessionFromBinaryPathAndPDBPath>b__0>d.MoveNext() in D:\a\1\s\src\SizeBench.GUI\MainWindowViewModel.cs:line 379

What you are doing
Trying to load an ARM64EC compiled binary

Expected behavior
SizeBench is able to load a ARM64EC binary.

Environment Details
Processor Count: 24
Runtime Version: 8.0.10
Framework Description: .NET 8.0.10
CoreCLR Build: 8.0.10
CoreCLR Hash: 81cabf2857a01351e5ab578947c7403a5b128ad1
CoreFX Build: 8.0.10
CoreFX Hash: 81cabf2857a01351e5ab578947c7403a5b128ad1
OS Architecture: X64
Process Architecture: X64
Has Shutdown Started: False
Current Directory: C:\WINDOWS\system32
Locale: en-US
UI Locale: en-US

Process Information
Process Name: SizeBench.GUI
Application Version: 2.2410.3101.0
Working Set: 193,064,960
Command Line: "C:\Program Files\WindowsApps\MicrosoftCorporationII.SizeBench_2.2410.3101.0_x64__8wekyb3d8bbwe\SizeBench.GUI\SizeBench.GUI.dll"
64-bit Process: True

Start at src/SizeBench.AnalysisEngine/DIAInterop/DIAAdapter.cs line 176, where the unknown machine type exception is raised, then trace initialization through src/SizeBench.AnalysisEngine/Session.cs lines 117 and 164. Reproduce the failure with an ARM64EC binary and verify that SizeBench can load ARM64EC, CHPE, and ARM64X binaries without this exception.