Bump maven-checkstyle-plugin from 3.1.1 to 3.1.2

Bumps [maven-checkstyle-plugin](https://github.com/apache/maven-checkstyle-plugin) from 3.1.1 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-3.1.1...maven-checkstyle-plugin-3.1.2)

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 1cba6f0..5bd2339 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,7 +52,7 @@
         <commons.release.3.binary.suffix />
         <commons.jira.id>JEXL</commons.jira.id>
         <commons.jira.pid>12310479</commons.jira.pid>
-        <checkstyle.plugin.version>3.1.1</checkstyle.plugin.version>
+        <checkstyle.plugin.version>3.1.2</checkstyle.plugin.version>
         <checksyle.version>8.40</checksyle.version>
 
         <!-- override of Jacoco properties defined in CP52 -->