Patching dockerfile with workaround for protobuf

protocolbuffers/protobuf#2032

Dockerfile

@@ -26,11 +26,13 @@ RUN apt-get update && apt-get install -q -y \
 # copy all package.xml
 ENV ROS_WS /opt/ros_ws
 RUN mkdir -p $ROS_WS/src
-WORKDIR $ROS_WS
-COPY ./bbr_msgs/package.xml src/bbr_ros2/bbr_msgs/
-COPY ./bbr_rosbag2_storage_plugin/package.xml src/bbr_ros2/bbr_rosbag2_storage_plugin/
-COPY ./bbr_sawtooth_bridge/package.xml src/bbr_ros2/bbr_sawtooth_bridge/
+WORKDIR $ROS_WS/src/bbr_ros2
+COPY ./bbr_common/package.xml bbr_common/
+COPY ./bbr_msgs/package.xml bbr_msgs/
+COPY ./bbr_rosbag2_storage_plugin/package.xml bbr_rosbag2_storage_plugin/
+COPY ./bbr_sawtooth_bridge/package.xml bbr_sawtooth_bridge/
 
+WORKDIR $ROS_WS
 # install package dependencies
 RUN apt-get update && apt-get install -y \
       ros-$ROS_DISTRO-ros2bag && \
@@ -49,7 +51,8 @@ RUN . /opt/ros/$ROS_DISTRO/setup.sh && \
     colcon build \
       --symlink-install \
       --cmake-args \
-        -DCMAKE_BUILD_TYPE=$CMAKE_BUILD_TYPE
+        -DCMAKE_BUILD_TYPE=$CMAKE_BUILD_TYPE \
+        -DCMAKE_CXX_FLAGS="-Wno-unused-parameter"
 
 # source workspace from entrypoint
 RUN sed --in-place --expression \