[ci] Trigger docs checks on merge_group too

[ricab]

If there are incompatibilities between separate changes to docs, we want to detect that before merging.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.27%. Comparing base (bd106dc) to head (ca6a692).
Report is 3643 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3995      +/-   ##
==========================================
- Coverage   89.44%   89.27%   -0.18%     
==========================================
  Files         260      259       -1     
  Lines       14999    14653     -346     
==========================================
- Hits        13416    13081     -335     
+ Misses       1583     1572      -11     

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[ricab]

Meh

[ricab]

FWIW actions/runner#1182

[xmkg]

Meh

YAML without anchors? What a shame. GitLab supports it, and it's a pretty handy thing.

The base branch was changed.

[levkropp]

LGTM, everything valid and as I understand it, this change should test itself as we add it to the merge queue

[ricab]

Ugh? But it's all green...