chore: Update dev_tools role to fix condition for checking held ROS p…

…ackage

Signed-off-by: Naophis <[email protected]>

ansible/roles/dev_tools/tasks/main.yaml

@@ -37,7 +37,7 @@
     state: latest
     update_cache: true
 
-- name: Hold check of ros-{{ rosdistro }}-plotjuggler-ros
+- name: Hold check of ros-{{ rosdistro + '-plotjuggler-ros' }}
   ansible.builtin.command: apt-mark showhold
   register: held_ros_packages
   changed_when: false