python-python-gitlab-1.11.0-bp153.1.15

- Update to 1.11.0:
  * add methods to retrieve an individual project environment
  * group labels with subscriptable mixin
  * add mr rebase method bc4280c
  * get artifact by ref and job cda1174
  * add support for board update 908d79f, closes #801
  * add support for issue.related_merge_requests 90a3631, closes #794

- Update to 1.9.0:
  * implement artifacts deletion
  * add endpoint to get the variables of a pipeline
  * delete ProjectPipeline
  * implement __eq__ and __hash__ methods
  * Allow runpy invocation of CLI tool (python -m gitlab)
  * add project releases api
  * merged new release & registry apis

- version update to 1.8.0
  * fix(api): make reset_time_estimate() work again
  * fix: handle empty 'Retry-After' header from GitLab
  * fix: remove decode() on error_message string
  * fix(api): avoid parameter conflicts with python and gitlab
  * fix(api): Don't try to parse raw downloads
  * feat: Added approve & unapprove method for Mergerequests
  * fix all kwarg behaviour