use correct config file in Docker

Dockerfile

@@ -18,5 +18,5 @@ WORKDIR /ros2rag
 
 RUN ./gradlew --no-daemon installDist
 
-ENTRYPOINT /bin/bash -c "./ros2rag.starter/build/install/ros2rag.starter/bin/ros2rag.starter ./ros2rag.starter/src/main/resources/config.json"
+ENTRYPOINT /bin/bash -c "./ros2rag.starter/build/install/ros2rag.starter/bin/ros2rag.starter ./ros2rag.common/config.yaml"