skipping test in publishing

Author: Arek Szostak

.github/workflows/cd_maven.yml

@@ -27,7 +27,7 @@ jobs:
           distribution: 'adopt'
 
       - name: Build with Maven
-        run: mvn -B package --file pom.xml
+        run: mvn -B package --file pom.xml -DskipTests
 
       - name: Set up JDK 8
         uses: actions/setup-java@v2