Update renovate.json

Don't automerge major versions, don't automerge docker minor versions.

renovate.json

@@ -1,8 +1,11 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
     "lockFileMaintenance": {
-        "automerge": true,
+        "automerge": true
-        "enabled": true
+    },
+    "major": {
+        "automerge": false,
+        "automergeType": "pr"
     },
     "minor": {
         "automerge": true,
@@ -16,5 +19,11 @@
         "automerge": true,
         "automergeType": "branch"
     },
-    "ignoreTests": true
+    "ignoreTests": true,
+    "dockerfile": {
+        "minor": {
+            "automerge": false,
+            "automergeType": "pr"
+        }
+    }
 }