Upgrade maven-checkstyle-plugin 3.3.0 -> 3.3.1

[Picnic-Bot]

This PR contains the following updates:

Package	Type	Update	Change
maven-checkstyle-plugin	build	patch	3.3.0 -> 3.3.1

---

• If you want to rebase/retry this PR, check this box

[Picnic-Bot]

Suggested commit message:

Upgrade maven-checkstyle-plugin 3.3.0 -> 3.3.1 (#861)

See https://github.com/apache/maven-checkstyle-plugin/compare/maven-checkstyle-plugin-3.3.0...maven-checkstyle-plugin-3.3.1

[Stephan202]

Added a commit; verified that violations inside the Refaster input/output test files are still flagged.

[github-actions]

Looks good. No mutations were possible for these changes.
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[github-actions]

Looks good. No mutations were possible for these changes.
Mutation testing report by Pitest. Review any surviving mutants by inspecting the line comments under Files changed.

[Picnic-Bot]

Edited/Blocked Notification

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[github-actions]

Looks good. No mutations were possible for these changes.
Mutation testing report by Pitest. Review any surviving mutants by inspecting the line comments under Files changed.

[sonarcloud]

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