chore: resolve 7484 renovate config typo (take 2)

[lee-treehouse]

📑 Summary

There is an issue to fix Renovate #7484

This is a follow up from an earlier attempt to fix, #7483

Turns out there were two typos - one regarding an instance of a manager, github-action vs github-actions and one regarding the correct manager property - matchManager or matchManagers.

In any case, I think this fix will actually resolve the error shown in Mend Invalid configuration option: packageRules[0].matchManager

Resolves 7484

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commit: 6ef865f

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Build	Status	Details	Updated (UTC)
default (Inspect)	✅ No changes detected	-	Mar 15, 2026, 2:55 AM

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 3.52%. Comparing base (277c496) to head (6ef865f).

Additional details and impacted files

@@           Coverage Diff           @@
##           develop   #7488   +/-   ##
=======================================
  Coverage     3.52%   3.52%           
=======================================
  Files          509     509           
  Lines        49790   49790           
  Branches       785     785           
=======================================
  Hits          1754    1754           
  Misses       48036   48036           

Flag	Coverage Δ
unit	3.52% <ø> (ø)

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