Support parallel builds #80
Description
When log4j-changelog-maven-plugin is used with a concurrency >1, Maven displays the following warning:
[WARNING] *****************************************************************
[WARNING] * Your build is requesting parallel execution, but this *
[WARNING] * project contains the following plugin(s) that have goals not *
[WARNING] * marked as thread-safe to support parallel execution. *
[WARNING] * While this /may/ work fine, please look for plugin updates *
[WARNING] * and/or request plugins be made thread-safe. *
[WARNING] * If reporting an issue, report it against the plugin in *
[WARNING] * question, not against Apache Maven. *
[WARNING] *****************************************************************
[WARNING] The following plugins are not marked as thread-safe in Apache Log4j Kotlin API Parent:
[WARNING] org.apache.logging.log4j:log4j-changelog-maven-plugin:0.4.0
[WARNING]
[WARNING] Enable debug to see precisely which goals are not marked as thread-safe.
[WARNING] *****************************************************************