merge: chore(deps): update module github.com/xanzy/go-gitlab to v0.112.0

This MR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [github.com/xanzy/go-gitlab](https://github.com/xanzy/go-gitlab) | require | minor | `v0.111.0` -> `v0.112.0` |

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### Release Notes

<details>
<summary>xanzy/go-gitlab (github.com/xanzy/go-gitlab)</summary>

### [`v0.112.0`](https://github.com/xanzy/go-gitlab/releases/tag/v0.112.0)

[Compare Source](https://github.com/xanzy/go-gitlab/compare/v0.111.0...v0.112.0)

#### Breaking changes:

-   Fix the branch protection defaults by [@&#8203;svanharmelen](https://github.com/svanharmelen) in https://github.com/xanzy/go-gitlab/pull/2036
    This ☝🏻 fixes a bug in the settings API (see [#&#8203;2033](https://github.com/xanzy/go-gitlab/issues/2033)) by introducing a dedicated struct for branch protection defaults. To prevent duplicated code, this struct is now also used (as a pointer!) for the `DefaultBranchProtectionDefaults` field in the `Group` struct.

#### What's Changed

-   Add alert status to project hooks by [@&#8203;dany74q](https://github.com/dany74q) in https://github.com/xanzy/go-gitlab/pull/2034
-   missing protected_branches#deploy_key_id by [@&#8203;seyguai](https://github.com/seyguai) in https://github.com/xanzy/go-gitlab/pull/2035
-   Add missing created at to project struct by [@&#8203;wind0r](https://github.com/wind0r) in https://github.com/xanzy/go-gitlab/pull/2037

#### New Contributors

-   [@&#8203;dany74q](https://github.com/dany74q) made their first contribution in https://github.com/xanzy/go-gitlab/pull/2034
-   [@&#8203;seyguai](https://github.com/seyguai) made their first contribution in https://github.com/xanzy/go-gitlab/pull/2035

**Full Changelog**: https://github.com/xanzy/go-gitlab/compare/v0.111.0...v0.112.0

</details>

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See merge request !89