Bump checkstyle from 10.2 to 10.3 (#471)

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 10.2 to 10.3.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-10.2...checkstyle-10.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

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

pom.xml

@@ -22,7 +22,7 @@
     <build-helper-maven-plugin.version>3.3.0</build-helper-maven-plugin.version>
     <checkstyle.config-location>https://raw.githubusercontent.com/gantsign/checkstyle-config/3.6.0/checkstyle.xml</checkstyle.config-location>
     <checkstyle.failsOnError>true</checkstyle.failsOnError>
-    <checkstyle.version>10.2</checkstyle.version>
+    <checkstyle.version>10.3</checkstyle.version>
     <docker.image>${project.artifactId}</docker.image>
     <error-prone.version>2.14.0</error-prone.version>
     <extra-enforcer-rules.version>1.5.1</extra-enforcer-rules.version>