Bump maven-checkstyle-plugin from 3.1.1 to 3.1.2 (#3550)
Bump maven-checkstyle-plugin from 3.1.1 to 3.1.2 (#3550)

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] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
Co-authored-by: Marcello Teodori <73c070f40863f0fc21d0ff99e36f989fc8497b79@users.noreply.github.com>
Activiti/Activiti,Activiti/Activiti