Unimplemented Tests: WorkloadSetInstallationRecordIsWrittenCorrectly and TurnOffWorkloadSetUpdateMode

[v-wuzhai]

Describe the bug

The tests WorkloadSetInstallationRecordIsWrittenCorrectly and TurnOffWorkloadSetUpdateMode are currently marked as "Not Implemented" and throw NotImplementedException.

The relevant code snippet is:

[Fact(Skip = "https://github.com/dotnet/sdk/issues/46905")]
public void WorkloadSetInstallationRecordIsWrittenCorrectly()
{
    //  Should the workload set version or the package version be used in the registry?
    throw new NotImplementedException();
}

[Fact(Skip = "https://github.com/dotnet/sdk/issues/46905")]
public void TurnOffWorkloadSetUpdateMode()
{
    //  If you have a workload set installed and then turn off workload set update mode, what should happen?
    //  - Update should update individual manifests
    //  - Resolver should ignore workload sets that are installed
    throw new NotImplementedException();
}

Expected behavior

These tests should be implemented to verify the following behaviors:

1. WorkloadSetInstallationRecordIsWrittenCorrectly:

   • Ensure that the workload set version or the package version is correctly recorded during installation.

2. TurnOffWorkloadSetUpdateMode:

   • Verify the behavior when the workload set update mode is turned off:
     • Updates should update individual manifests.
     • The resolver should ignore installed workload sets.