[dnceng-bot] Branch sdk/main can't be mirrored to Azdo fast forward branch

[dotnet-maestro-bot]

Branch main in dotnet/sdk repo can't be mirrored from GitHub to Azure DevOps main via fast forward.
There was unexpected error during the mirroring process.

unpacking the sent packfile failed on the remote
this tool can't detect it, but typical reason is
VS403654: The push was rejected because it contains one or more secrets.

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.

[marcpopMSFT]

This was resolved by replacing the test app password with the text "placeholder" https://github.com/dotnet/sdk/pull/43943/files