build(deps): bump phpgt/server from 1.1.6 to 1.2.0

Bumps [phpgt/server](https://github.com/phpgt/Server) from 1.1.6 to 1.2.0.
- [Release notes](https://github.com/phpgt/Server/releases)
- [Commits](phpgt/Server@v1.1.6...v1.2.0)

---
updated-dependencies:
- dependency-name: phpgt/server
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]