Notify Mattermost on merged PRs

Workflow runs for Notify Mattermost on merged PRs

• Test Qlty coverage upload

  skipped:
  Notify Mattermost on merged PRs#2:Pull request#79closedbymmeest
  test/qlty-coverage-check

  May 19, 20262s
  More actions for workflow run 2

• Github workflow for coverage and auto-merge

  skipped:
  Notify Mattermost on merged PRs#1:Pull request#78closedbymmeest
  coverage-update-223

  May 19, 20261s
  More actions for workflow run 1