Add cooldown period for Dependabot updates

To support internal feed, we need to have 7 day cooldown else noone can build internally

Author: dannyvv

.github/dependabot.yml

@@ -31,6 +31,8 @@ updates:
     schedule:
       interval: daily
       time: '13:00'
+    cooldown:
+      default-days: 7
     labels:
       - 'Type: Dependencies'
     versioning-strategy: lockfile-only