[Mono] Build fails with libcdacreader.so missing from manifest

[LoopedBard3]

Description

When attempting to build Mono for linux-x64 using the build command build.sh -ci -arch x64 -os linux -cross -s mono+clr.iltools+clr.hosts+libs+host+packs -c Release, the build fails with this error:

/__w/1/s/.packages/microsoft.dotnet.sharedframework.sdk/9.0.0-beta.24311.10/targets/sharedfx.targets(296,5): error : The following files are missing entries in the templated manifest: [/__w/1/s/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.sfxproj]
/__w/1/s/.packages/microsoft.dotnet.sharedframework.sdk/9.0.0-beta.24311.10/targets/sharedfx.targets(296,5): error : libcdacreader.so. Add these file names with extensions to the 'PlatformManifestFileEntry' item group for the runtime pack and corresponding ref pack to include them in the platform manifest. [/__w/1/s/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.sfxproj]

Example pipeline with the failure: https://dev.azure.com/dnceng/internal/_build/results?buildId=2472669&view=results
This seems like a similar error as was hit here: #67829.

Reproduction Steps

Clone the runtime repo and build with build.sh -ci -arch x64 -os linux -cross -s mono+clr.iltools+clr.hosts+libs+host+packs -c Release using the build.sh.

Expected behavior

Build succeeds

Actual behavior

Build fails with:

/__w/1/s/.packages/microsoft.dotnet.sharedframework.sdk/9.0.0-beta.24311.10/targets/sharedfx.targets(296,5): error : The following files are missing entries in the templated manifest: [/__w/1/s/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.sfxproj]
/__w/1/s/.packages/microsoft.dotnet.sharedframework.sdk/9.0.0-beta.24311.10/targets/sharedfx.targets(296,5): error : libcdacreader.so. Add these file names with extensions to the 'PlatformManifestFileEntry' item group for the runtime pack and corresponding ref pack to include them in the platform manifest. [/__w/1/s/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.sfxproj]

Regression?

This broke sometime Wednesday the 12th, with the diff between our last working and first broken build being: bb2a99b...eb8f54d

Known Workarounds

None

Configuration

Build is completed with the latest runtime targeting linux-x64

Other information

No response

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[lambdageek]

/cc @am11 @MichalStrehovsky

[am11]

#103488 should fix it.

[lambdageek]

I don't think we want to add cdacreader to the manifest - we don't want to ship it yet since it's not signed like the other diagnostic libraries (and we don't check its signature even if it were signed) #100946 (comment)

[am11]

Entries are now there for exclusion, not inclusion.