Include merge request approved events in Profile heat map

Zakir Dzhamaliddinovrequested to merge
gitlab-community/gitlab-org/gitlab:378613-include-mr-approvals-on-profile-page-heat-map into master

What does this MR do and why?

This MR fixes #378613 (closed) and contains Gitlab::ContributionsCalendar refactoring

Screenshots

Before After
before after

How to set up and validate locally

  1. Approve any Merge Request
  2. Go to Profile page
  3. Select current day on calendar

List of events should contain Merge Request approval event (see Screenshots section above)

Edited by Zakir Dzhamaliddinov

Merge request reports