chore(deps): bump github.com/vmware-tanzu/carvel-ytt in /hack (#377)

Bumps [github.com/vmware-tanzu/carvel-ytt](https://github.com/vmware-tanzu/carvel-ytt) from 0.44.3 to 0.44.4.
- [Release notes](https://github.com/vmware-tanzu/carvel-ytt/releases)
- [Changelog](https://github.com/carvel-dev/ytt/blob/develop/.goreleaser.yml)
- [Commits](carvel-dev/ytt@v0.44.3...v0.44.4)

---
updated-dependencies:
- dependency-name: github.com/vmware-tanzu/carvel-ytt
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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