E2E: Replace github_api gem with octokit
What does this MR do?
During development of some extensive checks for Github importer, I have encountered strange behaviour of some of the methods provided by github_api
gem.
Given that github_api
gem is not very well maintained (currently used version is 4 years old already), it's better to use octokit
which is also used by Gitlab project itself.
Edited by Andrejs Cunskis