MR4: Re-enable lang upgrades after on-sync period (5.0)

[junpataleta]

Part of the 5.0 release process. This will be merged after the on-sync period.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.97%. Comparing base (d0e593e) to head (95f92d3).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #150   +/-   ##
=======================================
  Coverage   56.97%   56.97%           
=======================================
  Files          48       48           
  Lines        1655     1655           
=======================================
  Hits          943      943           
  Misses        712      712           

Flag	Coverage Δ
behat_bisect_test	40.48% <ø> (ø)
phpunit_bisect_test	34.61% <ø> (ø)
phpunit_test	34.67% <ø> (ø)
postjobs_test	33.33% <ø> (ø)
runner_test	16.13% <ø> (ø)

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