gitlab 4.9.0

v4.9.0

on Ruby Gems

General improvements

• Updated gemspec

Bugfixes

• Fixed editing allowed approvers for a merge request #454
• Fixed handling 429 (Too Many Requests) responses from an API server #462

New features

• Added support for resource label events #459
• Added support for deleting a pipeline #460
• Added support for features flags #461
• Added support for project clusters API #463
• Added support for project releases and release links APIs #466