Minor tweak to action workflow

Author: farthinder

.github/workflows/publish-maven-package.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Install Package to packages branch
         run: |
           MAINJAR=$(ls -1 target/*.jar  | grep -v sources\.jar) 
-          SOURCEJAR=$(ls -1 target/*.jar  | grep sources\.jar) 
+          SOURCEJAR=$(ls -1 target/*.jar  | grep sources\.jar | grep -v test) 
           VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
           echo Main JAR: $MAINJAR
           echo Source JAR: $SOURCEJAR