enable debug logging for mvn test

Author: zhongkechen

.github/workflows/build.yml

@@ -58,4 +58,4 @@ jobs:
           cache: maven
 
       - name: Build and test
-        run: mvn -B install --file pom.xml -X
+        run: mvn -B install --file pom.xml -X -Dorg.slf4j.simpleLogger.defaultLogLevel=DEBUG