Bump checkstyle from 8.12 to 8.29

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 8.12 to 8.29.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-8.12...checkstyle-8.29)

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

Author: dependabot[bot]

pom.xml

@@ -44,7 +44,7 @@
     <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
     <findbugs-maven-plugin.version>3.0.4</findbugs-maven-plugin.version>
     <maven-checkstyle-plugin.version>2.17</maven-checkstyle-plugin.version>
-    <checkstyle.version>8.12</checkstyle.version>
+    <checkstyle.version>8.29</checkstyle.version>
 
     <!-- dependency versions -->
     <commons-lang3.version>3.8</commons-lang3.version>