Bump com.puppycrawl.tools:checkstyle in /flink-doris-connector

Bumps [com.puppycrawl.tools:checkstyle](https://github.com/checkstyle/checkstyle) from 8.14 to 8.29.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](checkstyle/checkstyle@checkstyle-8.14...checkstyle-8.29)

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

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

flink-doris-connector/pom.xml

@@ -80,7 +80,7 @@ under the License.
         <log4j2.version>2.18.0</log4j2.version>
         <project.scm.id>github</project.scm.id>
         <thrift-service.version>1.0.0</thrift-service.version>
-        <checkstyle.version>8.14</checkstyle.version>
+        <checkstyle.version>8.29</checkstyle.version>
         <maven-checkstyle-plugin.version>2.17</maven-checkstyle-plugin.version>
         <spotless.version>2.4.2</spotless.version>
     </properties>