chore(api,shared-data): Require Python >=3.10, not >=3.8

[SyntaxColoring]

Overview

Closes EXEC-391.

Test Plan

Not sure. Is there a way to do something like a private PyPI deploy to test this?

Changelog

• Remove Python 3.8 and 3.9 from CLASSIFIERS. As far as I know, these are just human-readable tags, and don't have any behavioral effect.
• Change python_requires from >=3.8 to >=3.10 for api and shared-data.

Mercifully, I think we can do this without having to do another pipenv lock, which would conflict #14805. pipenv verify doesn't complain.

Review requests

Other than api and shared-data, are there any other user-facing projects that this needs to happen in?

Risk assessment

Low.

[SyntaxColoring]

The "shared-data test/lint/deploy" workflow is failing for reasons unrelated to this PR; it's broken in edge too.

[sfoster1]

This looks correct to me, but also check hardware (I think it's fine though)

[SyntaxColoring]

Looks like hardware is already narrowed to 3.10.