ci: Reduce dependabot frequency to weekly
With the checked in lockfile, I find the daily dependabot PRs a bit too
frequent.
Weekly updates are still enough to not become too outdated.
@@ -3,9 +3,9 @@ updates:
- package-ecosystem: "github-actions"
directory: "/"
schedule:
- interval: "daily"
+ interval: "weekly"
- package-ecosystem: cargo
directory: "/"
schedule:
- interval: daily
+ interval: weekly
open-pull-requests-limit: 10
