Update sabre/dav requirement from 3.2.2 to 3.2.3 in /build/integration

Updates the requirements on [sabre/dav](https://github.com/sabre-io/dav) to permit the latest version.
- [Release notes](https://github.com/sabre-io/dav/releases)
- [Changelog](https://github.com/sabre-io/dav/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sabre-io/dav/commits/3.2.3

)

Signed-off-by: dependabot[bot] <support@dependabot.com>