Bump com.puppycrawl.tools:checkstyle from 10.21.2 to 10.21.4 in /java

Bumps [com.puppycrawl.tools:checkstyle](https://github.com/checkstyle/checkstyle) from 10.21.2 to 10.21.4.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-10.21.2...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]

java/pom.xml

@@ -62,7 +62,7 @@
   <properties>
     <bouncycastle.version>1.80</bouncycastle.version>
     <brotli4j.version>1.18.0</brotli4j.version>
-    <checkstyle.version>10.21.2</checkstyle.version>
+    <checkstyle.version>10.21.4</checkstyle.version>
     <example.dir>${project.basedir}/../../examples</example.dir>
     <hadoop.version>3.4.1</hadoop.version>
     <java.version>17</java.version>