Merge pull request #353 from hmcts/update-renovate--auto-minor-only

Ensure renovate only auto applies minor updates, rather than all

.github/renovate.json

@@ -2,6 +2,6 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
     "local>hmcts/.github:renovate-config",
-    "local>hmcts/.github//renovate/automerge-all"
+    "local>hmcts/.github//renovate/automerge-minor"
   ]
 }