chore(deps-dev): Bump sabre/dav from 4.4.0 to 4.5.1

Bumps [sabre/dav](https://github.com/sabre-io/dav) from 4.4.0 to 4.5.1.
- [Release notes](https://github.com/sabre-io/dav/releases)
- [Changelog](https://github.com/sabre-io/dav/blob/4.5.1/CHANGELOG.md)
- [Commits](sabre-io/dav@4.4.0...4.5.1)

---
updated-dependencies:
- dependency-name: sabre/dav
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>