l10n: Update locale files

[sync-l10n-for-pdf-js]

Automated weekly update of locale files from mozilla-central.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.19%. Comparing base (8213fbc) to head (f4dc88d).

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #21833   +/-   ##
=======================================
  Coverage   90.19%   90.19%           
=======================================
  Files         264      264           
  Lines       67298    67298           
=======================================
  Hits        60702    60702           
  Misses       6596     6596           

Flag	Coverage Δ
unittestcli	56.94% <ø> (ø)

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