chore: Replace PlexusTestCase by PlexusExtension in MavenProjectStub#241

sparsick merged 1 commit intoapache:maven-plugin-testing-3.xapache/maven-plugin-testing:maven-plugin-testing-3.xfrom

support-and-care:plexustestcasesupport-and-care/maven-plugin-testing:plexustestcaseCopy head branch name to clipboard