Manage-fastapi

* ⬆ Update default FastAPI version to `0.68.0` by nijat
* 🎉 Support Windows and MacOS. PR 36 by Kludex
* 👷 Fix automerge bot trigger. PR 46 by Kludex
* 👷Add automerge bot. PR 45 by Kludex
* 🎉 Support Python 3.9. PR 38 by Kludex
* 👷 Add dependabot with monthly schedule. PR 39 by Kludex
* 👷 Update CI to run only against master. PR 37 by Kludex

* MySQL support
* Bump default FastAPI version to 0.67.0

* Changed the internals completely.
* Added Optional pre-commit hooks.
* Added automatic Dockerfile generator.
* Added automatic docker-compose generator.
* Added interactive mode.
* Added automatic Dockerfile generator.
* Added different package managers such as pip and poetry.

* Added new template for settings without a database.
* Deleted run-server command.
* Deleted show-models command.

- Small change on API templates.