chore: Fix GitHub Actions findings with zizmor (#107)

Co-authored-by: quant-ranger[bot] <132915763+quant-ranger[bot]@users.noreply.github.com>

Author: quant-ranger[bot]

.github/dependabot.yml

@@ -10,3 +10,5 @@ updates:
       gh-actions:
         patterns:
           - "*"
+    cooldown:
+      default-days: 7