Separate forgejo and forgejo-runner roles

Also improve forgejo-runner config.

roles/forgejo/handlers/main.yml

@@ -10,13 +10,3 @@
     state: restarted
   notify: wait for forgejo
   when: '"handler" not in ansible_skip_tags'
-
-- name: restart forgejo-runner
-  service:
-    name: forgejo-runner
-    state: restarted
-  when: '"handler" not in ansible_skip_tags'
-
-- name: wait for forgejo
-  wait_for:
-    path: /var/lib/forgejo/socket