Update dependency on 'gitlab-dangerfiles' to '~> 1.1.0'

What does this MR do?

• v0.8.1: https://gitlab.com/gitlab-org/gitlab-dangerfiles/-/tags/v0.8.1
• v0.9.0: https://gitlab.com/gitlab-org/gitlab-dangerfiles/-/tags/v0.9.0
• v1.0.0: https://gitlab.com/gitlab-org/gitlab-dangerfiles/-/tags/v1.0.0
• v1.1.0: https://gitlab.com/gitlab-org/gitlab-dangerfiles/-/tags/v1.1.0

Comprehensive changelog:

### New features and features updates

* !22 Support Roulette in project without category.
* !24 Use the API to retrieve a MR diff and fallback to Git.
* !25 Add Product Intelligence review to roulette.

### Fixes

* !20 Ensure BaseLinter doesn't crash on commit subject with only a 'draft' prefix.

### Other changes (tooling, technical debt)

* !20 Add missing specs.

Danger still works: https://gitlab.com/gitlab-org/gitlab/-/jobs/1128480752