add colcon to core container

Author: sgillen

scripts/build_debian_packages.sh

@@ -95,7 +95,7 @@ if [[ "$ROS_DISTRO" == "jazzy" || "$ROS_DISTRO" == "kilted" || "$ROS_DISTRO" ==
 fi
 
 # Install system dependencies
-apt-get install -y build-essential python3-pip python3-bloom python3-rosdep git lsb-release devscripts debhelper fakeroot
+apt-get install -y build-essential python3-pip python3-bloom python3-rosdep git lsb-release devscripts debhelper fakeroot python3-colcon-common-extensions
 
 # Install Python dependencies
 if [ -f "requirements.txt" ]; then