Bump checkstyle from 9.0.1 to 9.1 (#292)

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 9.0.1 to 9.1.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-9.0.1...checkstyle-9.1)

---
updated-dependencies:
- dependency-name: com.puppycrawl.tools:checkstyle
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -337,7 +337,7 @@ file comparators, endian transformation classes, and much more.
     <commons.javadoc.java.link>${commons.javadoc8.java.link}</commons.javadoc.java.link>
     <commons.javadoc.version>3.3.0</commons.javadoc.version>
     <commons.checkstyle-plugin.version>3.1.2</commons.checkstyle-plugin.version>
-    <checkstyle.impl.version>9.0.1</checkstyle.impl.version>
+    <checkstyle.impl.version>9.1</checkstyle.impl.version>
     <commons.jacoco.version>0.8.7</commons.jacoco.version>
     <commons.surefire.version>3.0.0-M5</commons.surefire.version>
     <commons.japicmp.version>0.15.3</commons.japicmp.version>