Onboard new inter-branch merge flow [Configuration]

[f-alizada]

Context

Onboarding new merge flow based on the github actions

Changes Made

Added configuration file. The flow was copied from: https://github.com/dotnet/versions/blob/main/Maestro/subscriptions.json. Currently it will not be read or change any behaviour of the merge flow but will be used by the new workflow.

References

Documentation https://github.com/dotnet/arcade/blob/main/Documentation/Maestro/New-Inter-Branch-Merge-Approach.md One pager: https://github.com/dotnet/dnceng/blob/main/Documentation/OnePagers/github-action-inter-branch-merge.md

[wtgodbe]

Only the main branch is active in this repo, so inter-branch merges are no longer needed - closing