Update wp-coding-standards/wpcs to 3.4.1

[obenland]

Updates the locked version of wp-coding-standards/wpcs to 3.4.1, including any transitive PHPCS/PHPCSUtils/PHPCSExtra bumps required by it.

The composer.json constraint already allows 3.4.1, so only composer.lock changes.

Verified locally: phpcs output is identical before and after the update. [. phpcs unchanged: CLEAN(rc=0)]

Part of an org-wide sweep to get all repos onto WPCS 3.4.1.

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Co-authored-by: obenland <obenland@git.wordpress.org>

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.18%. Comparing base (02f2742) to head (6dfb7cc).

Additional details and impacted files

@@            Coverage Diff             @@
##             develop     #899   +/-   ##
==========================================
  Coverage      80.18%   80.18%           
  Complexity      2526     2526           
==========================================
  Files            106      106           
  Lines          10240    10240           
==========================================
  Hits            8211     8211           
  Misses          2029     2029           

Flag	Coverage Δ
unit	80.18% <ø> (ø)

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