chore(ci): Add an initial delay to let gitflow ci start before checking mergeability

[github-actions]

Note

The pull request "chore(ci): Add an initial delay to let gitflow ci start before checking mergeability" was created by @andreiborza but did not reference an issue. Therefore this issue was created for better visibility in external tools like Linear.

I think this action ran through faster than it took the Gitflow PR CI to start which is why it immediately detected a mergable state and finished running without reporting an issue.

The action now waits a minute before starting its check.

[linear]

JS-1246