Change Dependabot schedule from daily to weekly

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: yahonda

.github/dependabot.yml

@@ -4,5 +4,4 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      # Check for updates to GitHub Actions every weekday
-      interval: "daily"
+      interval: "weekly"