Bump org.apache.groovy:groovy from 4.0.30 to 4.0.31

Bumps [org.apache.groovy:groovy](https://github.com/apache/groovy) from 4.0.30 to 4.0.31.
- [Commits](https://github.com/apache/groovy/commits)

---
updated-dependencies:
- dependency-name: org.apache.groovy:groovy
  dependency-version: 4.0.31
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

ocpp-v1_6-test/pom.xml

@@ -63,7 +63,7 @@
         <dependency>
             <groupId>org.apache.groovy</groupId>
             <artifactId>groovy</artifactId>
-            <version>4.0.30</version>
+            <version>4.0.31</version>
             <scope>test</scope>
         </dependency>
         <dependency>