dependabot maven(deps): bump maven-checkstyle-plugin from 3.3.0 to 3.3.1

Bumps maven-checkstyle-plugin from 3.3.0 to 3.3.1.

Commits

• 88262c5 [maven-release-plugin] prepare release maven-checkstyle-plugin-3.3.1
• 47b8ec6 [MCHECKSTYLE-403] Goal checkstyle:checkstyle ignores testResources
• d12ab8f [MCHECKSTYLE-439] Upgrade to Parent 40
• b4c97c4 fix typo in "ckecks"
• 2b0fc93 [MCHECKSTYLE-438] Update and backfill release notes
• 1c271f1 [MCHECKSTYLE-412] Add option to exclude generated sources/test-sources from d...
• 9ebda63 [MNG-6829] Replace StringUtils#isEmpty(String) and #isNotEmpty(String) (#121)
• 472ed5a remove unnecessary I/O indirections (#119)
• f3e9603 clean up before test (#120)
• 756a61f [maven-release-plugin] prepare for next development iteration
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