Bump com.puppycrawl.tools:checkstyle from 10.21.3 to 10.21.4

Bumps [com.puppycrawl.tools:checkstyle](https://github.com/checkstyle/checkstyle) from 10.21.3 to 10.21.4.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-10.21.3...checkstyle-10.21.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -52,7 +52,7 @@
         <image-comparison.version>4.4.0</image-comparison.version>
         <jfreechart.version>1.5.5</jfreechart.version>
 
-        <checkstyle.version>10.21.3</checkstyle.version>
+        <checkstyle.version>10.21.4</checkstyle.version>
         <spotbugs.version>4.9.2</spotbugs.version>
         <pmd.version>7.11.0</pmd.version>
         <junit.version>4.13.2</junit.version>