chore: Update dependabot.yml

Author: sorairolake

.github/dependabot.yml

@@ -8,8 +8,12 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 7
 
   - package-ecosystem: "gomod"
     directory: "/"
     schedule:
       interval: "weekly"
+    cooldown:
+      default-days: 7