Bump com.puppycrawl.tools:checkstyle from 10.21.3 to 10.21.4 (#246)

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

Author: dependabot[bot]

pom.xml

@@ -157,7 +157,7 @@
 		<version.com.github.spotbugs>4.9.2.0</version.com.github.spotbugs>
 		<version.com.google.code.replacer>1.5.3</version.com.google.code.replacer>
 		<version.com.google.cloud.tools.plugins.jib>3.4.4</version.com.google.cloud.tools.plugins.jib>
-		<version.com.puppycrawl.tools.checkstyle>10.21.3</version.com.puppycrawl.tools.checkstyle>
+		<version.com.puppycrawl.tools.checkstyle>10.21.4</version.com.puppycrawl.tools.checkstyle>
 		<version.io.kokuwa.maven.parent>0.6.19-SNAPSHOT</version.io.kokuwa.maven.parent>
 		<version.io.github.git-commit-id>9.0.1</version.io.github.git-commit-id>
 		<version.io.fabric8.docker-maven-plugin>0.45.1</version.io.fabric8.docker-maven-plugin>