update(unifi_controller): bump version to 9.5.21

roles/unifi_controller/defaults/main/main.yml

@@ -1,5 +1,5 @@
 ---
-unifi_controller_version: "9.4.19"
+unifi_controller_version: "9.5.21"
 unifi_controller_base_path: "/var/lib/unifi-controller"
 unifi_controller_log_path: "{{ unifi_controller_base_path }}/log"
 unifi_controller_data_path: "{{ unifi_controller_base_path }}/data"

roles/unifi_controller/tasks/deploy-docker.yml

@@ -10,6 +10,7 @@
   community.docker.docker_container:
     name: "{{ unifi_controller_container_name }}"
     image: "{{ unifi_controller_container_image }}"
+    env: "{{ unifi_controller_container_env | default(omit, true) }}"
     user: "{{ unifi_controller_container_user }}"
     ports: "{{ unifi_controller_container_ports }}"
     volumes: "{{ unifi_controller_container_merged_volumes }}"