build(deps): bump github.com/xanzy/go-gitlab from 0.21.0 to 0.22.0

Bumps [github.com/xanzy/go-gitlab](https://github.com/xanzy/go-gitlab) from 0.21.0 to 0.22.0.
- [Release notes](https://github.com/xanzy/go-gitlab/releases)
- [Changelog](https://github.com/xanzy/go-gitlab/blob/master/CHANGELOG.md)
- [Commits](https://github.com/xanzy/go-gitlab/compare/v0.21.0...v0.22.0)

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

Gopkg.lock

@@ -361,12 +361,12 @@
   version = "v1.0.0"
 
 [[projects]]
-  digest = "1:766db8705204fd893db77ff5fde228362fbceac616b87ccb9976518095aac8ce"
+  digest = "1:a58711c8b908d88e28007ddebf529f40f4a9d34efe7ba729244d737f46a756ca"
   name = "github.com/xanzy/go-gitlab"
   packages = ["."]
   pruneopts = "UT"
-  revision = "87a6b9db49fa4bd6efeaeec450b0c5661f94fcb5"
-  version = "v0.21.0"
+  revision = "457d4d018eaa1fad8e6c63502cebcd11ba60164e"
+  version = "v0.22.0"
 
 [[projects]]
   branch = "master"

Gopkg.toml

@@ -74,7 +74,7 @@
 
 [[constraint]]
   name = "github.com/xanzy/go-gitlab"
-  version = "0.21.0"
+  version = "0.22.0"
 
 [[constraint]]
   branch = "master"