CI reconfiguration

[Vitalina-Vakulchyk]

Remove appraisal;
Utilize GitHub Actions matrix;
Migrate to GitHub Actions;

PR progress:

• The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
• Wrote good commit messages.
• Commit message starts with [Fix #issue-number] (if the related issue exists).
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Added tests.
• Added an entry to the changelog if the new code introduces user-observable changes. See changelog entry format for details.

[Vitalina-Vakulchyk]

@rabotyaga Seems, to make check required for merging, it needs to correct 'branch protection rules' in Chewy Settings section. I have not access to this section
https://docs.github.com/en/github/administering-a-repository/managing-a-branch-protection-rule

[rabotyaga]

👍 🚀