drop unindent and indoc dependencies

[davidhewitt]

With const eval getting more powerful, we're able to drop the indoc and unindent dependencies for the py_run! macro.

[alex]

Nice! We love dropping dependencies! Looks like this needs copy_from_slice (const-MSRV 1.87.0)?

[davidhewitt]

Ah it's possible to implement that by hand, will fixup later 👍

[davidhewitt]

Red CI:

• guide needs setup lychee cache #5582
• semver-checks are not happy that the dependency is being dropped, it's fine.

I think this is good to review / merge?

[alex]

unindent_bytes is a bit hard to read, but I think this all looks right. thanks!

[Tpt]

I allowed myself a review. Nice to see dependencies being removed

[davidhewitt]

Thanks both for the reviews, I pushed a commit which attempts to improve readability!

[Tpt]

Thank you! Much nicer!