Update renovate rules

Trying this (Renovate) out for the first time.

renovate.json

@@ -1,6 +1,12 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:recommended"
+  "extends": ["config:recommended", "npm:unpublishSafe", "schedule:daily"],
+  "automerge": true,
+  "packageRules": [
+    {
+      "matchManagers": ["npm"],
+      "matchDepTypes": ["devDependencies"],
+      "enabled": false
+    }
   ]
 }