chore: Add renovate config

Author: roottool

.github/renovate.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:best-practices"],
+  "timezone": "Asia/Tokyo",
+  "schedule": ["before 5am on Monday"],
+	"labels": ["dependencies"],
+  "lockFileMaintenance": {
+    "enabled": true,
+    "schedule": ["before 5am on Monday"]
+  },
+  "packageRules": [
+    {
+      "matchUpdateTypes": ["patch", "minor"],
+      "automerge": true
+    }
+  ]
+}