fix: docs don't trigger required checks

[LesnyRumcajs]

Summary of changes

Changes introduced in this pull request:

• workaround for required checks for docs as documented in the workflow file,
• don't trigger expensive jobs on doc workflow changes

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code adheres to the team's documentation standards,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

[hanabi1224]

I'd suggest we merge this branch into #5104 to verify it works before merging it into main.

[LesnyRumcajs]

I'd suggest we merge this branch into #5104 to verify it works before mergeing it.

It won't work. The branch will see that we modified something other than docs, i.e., forest.yml and so it will run regular checks as usual.

[hanabi1224]

It won't work. The branch will see that we modified something other than docs, i.e., forest.yml and so it will run regular checks as usual.

Ah you are right : )