Bump maven-checkstyle-plugin from 3.0.0 to 3.1.2

Bumps [maven-checkstyle-plugin](https://github.com/apache/maven-checkstyle-plugin) from 3.0.0 to 3.1.2.
- [Release notes](https://github.com/apache/maven-checkstyle-plugin/releases)
- [Commits](https://github.com/apache/maven-checkstyle-plugin/compare/maven-checkstyle-plugin-3.0.0...maven-checkstyle-plugin-3.1.2)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-checkstyle-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 4e26a3c..d58bbf0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,7 +69,7 @@
                 </plugin>
                 <plugin>
                     <artifactId>maven-checkstyle-plugin</artifactId>
-                    <version>3.0.0</version>
+                    <version>3.1.2</version>
                     <configuration>
                         <configLocation>config/maven_checks.xml</configLocation>
                         <headerLocation>config/maven-header.txt</headerLocation>