Suggestion by copilot

Author: Tigul

.github/workflows/ci.yml

@@ -25,7 +25,7 @@ jobs:
         cd /opt/ros/overlay_ws/src/semantic_world
         rm -rf .git .github .gitignore .gitmodules .readthedocs.yaml
         cp -r /__w/${{ github.event.repository.name }}/${{ github.event.repository.name }}/ros/src/semantic_world /opt/ros/overlay_ws/src
-    
+
     - name: Install dependencies
       run: |
         sudo apt-get update

docker/Dockerfile

@@ -9,7 +9,7 @@ ARG OVERLAY_WS=/opt/ros/overlay_ws
 WORKDIR $OVERLAY_WS/src
 SHELL ["/bin/bash", "-c"]
 
-RUN apt update && apt install python3.12-venv ros-jazzy-xacro python3-vcstool git ros-dev-tools default-jre graphviz graphviz-dev -y
+RUN apt update && apt install python3.12-venv ros-jazzy-xacro python3-vcstool git ros-dev-tools default-jre graphviz graphviz-dev -y && apt-get clean && rm -rf /var/lib/apt/lists/*
 RUN vcs import --input https://raw.githubusercontent.com/cram2/semantic_world/main/rosinstall/semantic_world-https.rosinstall
 RUN source /opt/ros/jazzy/setup.bash && cd $OVERLAY_WS && colcon build --symlink-install
 RUN echo "source $OVERLAY_WS/install/setup.bash" >> ~/.bashrc