Fix impsort mvn 391

[mnovak1]

plexus is no longer injected by maven

https://maven.apache.org/docs/3.9.1/release-notes.html

Maven 2.x was auto-injecting an ancient version of plexus-utils dependency into the plugin classpath, and Maven 3.x continued doing this to preserve backward compatibility. Starting with Maven 3.9, it does not happen anymore. This change may lead to plugin breakage. The fix for affected plugin maintainers is to explicitly declare a dependency on plexus-utils. The workaround for affected plugin users is to add this dependency to plugin dependencies until issue is fixed by the affected plugin maintainer. See MNG-6965.

Please make sure your PR meets the following requirements:

• [x] Pull Request contains a description of the changes
• [x] Pull Request does not include fixes for multiple issues/topics
• [x] Code is formatted, imports ordered, code compiles and tests are passing
• [x] Code is self-descriptive and/or documented

[mnovak1]

@simkam I've force pushed the PR as I left a mess there.

[mnovak1]

I'll merge it once all checks passes.

[simkam]

ha, I thought it is intentional ... ok