Reduce gitea healthy-await delay

We waited for 60 seconds previously which is exactly when the
supplied ssh key would disappear in my setup. So instead we
wait for slightly shorter (55 seconds) to ease this for me.

roles/gitea/tasks/main.yml

@@ -96,7 +96,7 @@
 
 - name: Wait a minute for gitea to become healthy
   wait_for:
-    timeout: 60
+    timeout: 55
   delegate_to: localhost
   when: gitea_deployment is changed