Update renovate.json

Support digest pinning

compose.yml

@@ -3,7 +3,7 @@ version: "3.8"
 
 services:
   app:
-    image: 'gitlab/gitlab-ce:19.1.3-ce.0'
+    image: 'gitlab/gitlab-ce:18.10.4-ce.0'
     networks:
       - proxy
       - internal
@@ -34,7 +34,7 @@ services:
         - "backupbot.backup=true"
         - "backupbot.backup.path=/etc/gitlab/,/var/log/gitlab/,/var/opt/gitlab/"
         - "coop-cloud.${STACK_NAME}.timeout=${TIMEOUT:-240}"
-        - "coop-cloud.${STACK_NAME}.version=1.2.2+19.1.3-ce.0"
+        - "coop-cloud.${STACK_NAME}.version=0.2.3+18.10.4-ce.0"
     secrets:
       - initial_root_password
       - runner_token

renovate.json

@@ -2,5 +2,13 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "config:recommended"
+  ],
+  "packageRules": [
+    {
+      "matchDatasources": [
+        "docker"
+      ],
+      "pinDigests": true
+    }
   ]
 }