add prune separately for manual run

prune.yaml

@@ -0,0 +1,6 @@
+---
+- name: "Prune all services"
+  hosts: commonupdate
+  roles:
+    - prune
+...

requirements.yaml

@@ -2,4 +2,5 @@
 collections:
 - ansible.posix
 - community.general
+- community.docker
 ...

roles/prune/tasks/main.yaml

@@ -0,0 +1,9 @@
+---
+- name: Prune everything
+  community.docker.docker_prune:
+    containers: true
+    images: true
+    networks: true
+    volumes: true
+    builder_cache: true
+...