fix: correct inline suggestion for requirements.txt

[dimaqq]

Fixed #6845

Summary

Passing a requiremenst.txt file via --with to uvx is wrong and there's a helpful inline suggestion to use xxxx instead.

The suggestion was wrong, suggested -r while the correct flag is --with-requirements.

Test Plan

• create a simple requirements.txt
• [opt] run cargo run -- --help to work around cargo run --bin uvx requires a manual step #6847
• run cargo run --bin uvx -- --with test-requirements.txt tox or similar

Full Disclosure

The "wrong" text was present in 4 lines of code and 1 assert, and so I've changes all 5 places.

I have no clue if all 5 places should have been changed. Maybe only some?

Please review 🙇🏻

[charliermarsh]

Thanks! I think we need to somehow make this dynamic based on the input command, since -r is correct for some commands (like uv pip install).

[dimaqq]

I'll happily leave this to maintainers, as my crab claws have barely moulted...

[charliermarsh]

Hah, no worries @dimaqq. I'll try to finish it.

[charliermarsh]

Fixed in #8112.