Skip fastapi-cli Indirection and SSL/TLS on Debug

[JoshuaXOng]

Following up on, #42395. Have just added the SSL/TLS flags to the debug control flow. fastapi cli does not have SSL flags, but it is a thin wrapper around uvicorn.run (https://github.com/fastapi/fastapi-cli/blob/main/src/fastapi_cli/cli.py#L92)

Have created the Appendable test utility to declare files/filepaths in pytest.mark.parametrize that are to be relative tmp_path. Lmk if it is a bit weird / not good. Or whether it should be separated out into a different PR.

There are some CI failures, not too sure atm if it is because of uvicorn[standard]>=0.15.0 or flakiness. Between fa4239a and ba2fec5 same checks did not fail (barring mypy). Other PRs that trigger the same checks seem to sometimes error too (though error message is a bit different). Atm, the only failing CI check looks to be resolved as a part of #42500.
fastapi[standard]>=0.112.2 itself requires uvicorn[standard]>=0.15.0, wondering though whether since uvicorn is no longer a transitive dependency the tests fail.

related: #42359

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[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[pierrejeambrun]

up

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[pierrejeambrun]

up

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 5 days if no further activity occurs. Thank you for your contributions.

[pierrejeambrun]

I don't think that's needed anymore. (ssl/tls on debug mode).

We can always come back to this if people ask for it.