Update actions/checkout action to v6

.gitea/workflows/build.yaml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Install pnpm
         uses: pnpm/action-setup@v4

renovate.json

@@ -1,11 +1,6 @@
 {
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "config:base"  
-  ],
-  "packageRules": [
-    {
-      "updateTypes": ["minor", "patch", "pin", "digest"],
-      "automerge": true
-    }
+    "local>spenke-nordic-ab/renovate-config"
   ]
 }