feat: renovate all the way

Because dependabot is lazy on weekends.

renovate.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "schedule": [
-    "at any time"
+  "extends": [
+    "config:recommended"
   ],
   "lockFileMaintenance": {
     "enabled": true,
@@ -10,13 +10,6 @@
     ]
   },
   "nix": {
-    "schedule": [
-      "at any time"
-    ],
     "enabled": true
-  },
-  "enabledManagers": [
-    "github-actions",
-    "nix"
-  ]
-}
+  }
+}