Base image update.
What's Changed
- build(deps): bump actions/checkout from 5 to 6 by @dependabot[bot] in #968
- build(deps): bump golangci/golangci-lint-action from 8 to 9 by @dependabot[bot] in #967
Full Changelog: v4.5.0...v4.5.1
Available at: registry.k8s.io/git-sync/git-sync:v4.5.1