ci: run mvn only on ubuntu where hone/Docker works

Author: rehandxtr

.github/workflows/mvn.yml

@@ -17,7 +17,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-24.04, windows-2022]
+        # hone-maven-plugin needs Docker; GitHub-hosted macOS/Windows runners
+        # do not provide a working docker CLI for this plugin today.
+        os: [ubuntu-24.04]
         java: [23]
     steps:
       - uses: actions/checkout@v6