Bump checkstyle from 8.19 to 8.29 in /parent

Bumps [checkstyle](https://github.com/checkstyle/checkstyle) from 8.19 to 8.29.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](https://github.com/checkstyle/checkstyle/compare/checkstyle-8.19...checkstyle-8.29)

---
updated-dependencies:
- dependency-name: com.puppycrawl.tools:checkstyle
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/parent/pom.xml b/parent/pom.xml
index 56a1eb3..f0a240c 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -113,7 +113,7 @@
         <maven.assembly.plugin.version>2.4</maven.assembly.plugin.version>
         <maven.bundle.plugin.version>3.5.0</maven.bundle.plugin.version>
         <maven.checkstyle.plugin.version>3.0.0</maven.checkstyle.plugin.version>
-        <checkstyle.puppycrawl.version>8.19</checkstyle.puppycrawl.version>
+        <checkstyle.puppycrawl.version>8.29</checkstyle.puppycrawl.version>
         <mockito.version>1.10.19</mockito.version>
         <mysql.connector.version>8.0.13</mysql.connector.version>
         <netlibjava.version>1.1.2</netlibjava.version>