chore: standardize renovate config

Author: phmatray

renovate.json

@@ -1,16 +1,30 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
-  ],
+  "extends": ["config:recommended"],
+  "baseBranchPatterns": ["dev"],
+  "schedule": ["before 9am on Saturday"],
+  "timezone": "Europe/Brussels",
+  "labels": ["dependencies", "renovate"],
   "packageRules": [
     {
-      "matchUpdateTypes": [
-        "minor",
-        "patch"
-      ],
-      "automerge": true
+      "description": "Automerge minor and patch updates",
+      "matchUpdateTypes": ["minor", "patch"],
+      "automerge": true,
+      "automergeType": "pr"
+    },
+    {
+      "description": "Group all NuGet minor/patch updates together",
+      "matchManagers": ["nuget"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "groupName": "NuGet minor/patch updates"
+    },
+    {
+      "description": "Group all NuGet major updates together",
+      "matchManagers": ["nuget"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "NuGet major updates",
+      "dependencyDashboardApproval": true
     }
   ],
   "platformAutomerge": true
-}
+}