Heroku deploy test

What's Changed

• Test/improve coverage by @toledompm in #4
• [Feat] refresh token strategy by @toledompm in #5
• feat: serve static login response by @toledompm in #7
• chore: dockerize production app by @toledompm in #8

New Contributors

• @toledompm made their first contribution in #4

Full Changelog: https://github.com/toledompm/checkin-api/commits/v0.0.0