ci: Migrate from TravisCI to GitHub Actions

[mtrezza]

New Pull Request Checklist

• [x] I am not disclosing a vulnerability.
• [x] I am creating this PR in reference to an issue.

Issue Description

Initial commit to get Actions triggering; CI may not work yet

Closes: https://github.com/parse-community/ParseLiveQuery-Android/issues/122

Approach

TODOs before merging

n/a

[parse-github-assistant[bot]]

Thanks for opening this pull request!

• 🎉 We are excited about your hands-on contribution!

[parse-github-assistant[bot]]

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