GitHub is showing the `Merge pull request` button before all test have passed

[nicolasstucki]

GitHub is showing the Merge pull request button before all test have passed. It is also showing CI tests for push. This should not be happening.

Originally posted by @nicolasstucki in #18208 (comment)

[nicolasstucki]

Usually it show the Enable auto-merge button

[nicolasstucki]

This is because it was not a PR on the main branch. It was on language-reference-stable.

[nicolasstucki]

I enabled Require status checks to pass before merging on language-reference-stable.