Update sqlalchemy stubs

[wwuck]

The SQLAlchemy project now provides stubs and a mypy plugin.

[wwuck]

Should I have left the existing stubs package in the Readme? The sqlalchemy docs say their stubs are a complete replacement for the existing dropbox stubs package.

These stubs necessarily fully replace the previous sqlalchemy-stubs typing annotations published by Dropbox, as they occupy the same sqlalchemy-stubs namespace as specified by PEP 561.

[orsinium]

Thank you for your contribution! Yes, let's not replace it for a while and keep both links, please. We can remove sqlalchemy-stubs when (and if) they have an official deprecation notice in the readme. Great if you can open an issue for them to clarify the status of the project.

[orsinium]

Related: dropbox/sqlalchemy-stubs#195

[wwuck]

Both stubs and plugin for sqlalchemy have the same documentation page which is flagged in CI as a duplicate link.

[sobolevn]

Oh wow, I was not aware about the second one. Thanks!

[sobolevn]

Both stubs and plugin for sqlalchemy have the same documentation page which is flagged in CI as a duplicate link.

You can remove one of them.

[sobolevn]

Thanks!