Update dredd-hooks-template requirement from 1.1.7 to 1.1.8
Update dredd-hooks-template requirement from 1.1.7 to 1.1.8

Updates the requirements on [dredd-hooks-template](https://github.com/apiaryio/dredd-hooks-template) to permit the latest version.
- [Release notes](https://github.com/apiaryio/dredd-hooks-template/releases)
- [Commits](https://github.com/apiaryio/dredd-hooks-template/compare/v1.1.7...v1.1.8)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
apiaryio/dredd-hooks-python