chore: switch to platform-managed renovate

Author: nadiamoe

.github/renovate.json5

@@ -6,6 +6,10 @@
     "github>grafana/sm-renovate//presets/go.json5",
     "github>grafana/sm-renovate//presets/grafana-build-tools.json5"
   ],
+  "ignorePresets": [
+    "github>grafana/grafana-renovate-config//presets/shared-workflows",
+    "github>grafana/grafana-renovate-config//presets/automerge"
+  ],
   "packageRules": [
     {
       // The default "docker" versioning will try to restrict upgrades to versions that do not change everything after

.github/workflows/renovate.yaml

@@ -1,8 +1,6 @@
-name: Self-hosted Renovate
+name: Self-hosted Renovate (Deprecated)
 
 on:
-  schedule:
-    - cron: "10 */4 * * *"
   workflow_dispatch:
 
 permissions: