chore: renovate

Author: Hidetaka Okamoto

renovate.json

@@ -1,5 +1,20 @@
 {
   "extends": [
     "config:base"
-  ]
-}
+  ],
+  "timezone": "Asia/Tokyo",
+  "schedule": ["every weekend"],
+  "automerge": true,
+  "vulnerabilityAlerts": {
+    "enabled": true
+  },
+  "lockFileMaintenance": {
+    "enabled": true,
+    "schedule": [
+      "before 3am on the first day of the month"
+    ]
+  },
+  "minor": {
+    "groupName": "all dependencies"
+  }
+}