Bump gitlab from 5.0.0 to 5.1.0

Bumps [gitlab](https://github.com/NARKOZ/gitlab) from 5.0.0 to 5.1.0.
- [Release notes](https://github.com/NARKOZ/gitlab/releases)
- [Commits](NARKOZ/gitlab@v5.0.0...v5.1.0)

---
updated-dependencies:
- dependency-name: gitlab
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -132,7 +132,8 @@ GEM
     ffi (1.17.0-aarch64-linux-musl)
     ffi (1.17.0-arm64-darwin)
     ffi (1.17.0-x86_64-linux-gnu)
-    gitlab (5.0.0)
+    gitlab (5.1.0)
+      base64 (~> 0.2.0)
       httparty (~> 0.20)
       terminal-table (>= 1.5.1)
     globalid (1.2.1)