Can this be merged, since it appears to be sample-wide failures and not PAdES-policy specific?

@datalogics-rheryani Yes, these failures are acceptable at this time. The rest of the sample repositories have been modified to have their CI use Jenkinsfiles/invoke tasks to build/test the samples, but this repo still using GitHub Actions, which started failing once we removed auto-activation logic from the NuGet package. If you'd like to ensure that this sample can run, you can try running it locally using the NuGet package from the nuget-builder nightly, which should contain the binaries that have the PAdES policy APIs access in them.