fix: use unjs' renovate.json to automate dependencies merging

Author: John Campion

.github/renovate.json

@@ -1,4 +1,22 @@
 {
-  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": ["config:base"]
+  "extends": [
+    "config:base",
+    "group:allNonMajor",
+    ":semanticCommitTypeAll(chore)"
+  ],
+  "meteor": {
+    "enabled": false
+  },
+  "rangeStrategy": "bump",
+  "npm": {
+    "commitMessageTopic": "{{prettyDepType}} {{depName}}"
+  },
+  "packageRules": [
+    {
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "automerge": true,
+      "automergeSchedule": ["after 1am and before 2am"],
+      "schedule": ["after 2am and before 3am"]
+    }
+  ]
 }