Fastapi-mail

Thanks to Mark90 for finding out that py.typed was missing. 187

This relase fixes ResourceWarning in the code. In previous versions resources after reading file was not cleaned up.
Thanks to sylflo and Turall making this possible :)

The file upload function has been modified to make it compatible with the new version of starlette.

Thanks to Divyessh for his contribution!

Thanks to rambo for his PR, to make the library less strict on dependencies.

This release covers below points:
- Dependency libraries updated
- Tests are fixed, file names modified
- Blue library removed and replaced with black
- GitHub actions fixed
- And other small refactorings

I would like to thank mentaljam for his effort and for helping us on improving stability!
Thanks for the discussions on the issues

This release fixes the following issues -> 166 161