[dnceng-bot] Branch msbuild/vs-test-only can't be mirrored to Azdo fast forward branch

[dotnet-maestro-bot]

Branch vs-test-only in DotNet/msbuild repo can't be mirrored from GitHub to Azure DevOps vs-test-only via fast forward.
There was unexpected error during the mirroring process.

failed to connect to dev.azure.com: Network is unreachable

Problem need to be resolved to unblock the code flow.

You can troubleshoot the issue by:

• checking the logs of the mirroring process in the mirroring pipeline.
• by trying to mirror the branch manually
• you can disable the mirroring of the branch in the configuration file.
• you can ask @dotnet/dnceng for help or read the documentation.

Please close this issue once the problem is resolved.