Merge pull request #7 from 88labs/feat/dependabot-cooldown

feat: add Dependabot config with cooldown setting

Author: yutafujita

.github/dependabot.yml

@@ -0,0 +1,8 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    cooldown:
+      default-days: 3