fix: bump mongodb-github-action version to 1.12.1

[jescalada]

Fixes recent CI error with MongoDB setup job failing due to Docker API version mismatch.

[netlify]

✅ Deploy Preview for endearing-brigadeiros-63f9d0 canceled.

Name	Link
🔨 Latest commit	741596a
🔍 Latest deploy log	https://app.netlify.com/projects/endearing-brigadeiros-63f9d0/deploys/698eba3ad8e0400008b9da5f

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.25%. Comparing base (2351fa2) to head (741596a).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1405   +/-   ##
=======================================
  Coverage   81.25%   81.25%           
=======================================
  Files          65       65           
  Lines        4657     4657           
  Branches      792      792           
=======================================
  Hits         3784     3784           
  Misses        858      858           
  Partials       15       15           

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