Support `--all-groups` for `uv pip install`

[mikeweltevrede]

Summary

Support --all-groups for uv pip install just like with uv sync. Right now, all groups need to be manually provided. This is overly verbose while there is already precedent for an --all-groups argument.

Could not find any related issues in the issue tracker with search uv pip install all-groups: https://github.com/astral-sh/uv/issues?q=is%3Aissue%20%20sort%3Arelevance-desc%20uv%20pip%20install%20all-groups

Example

Instead of:

uv pip install -r pyproject.toml --all-extras --group=dev --group=lint --strict

one would use

uv pip install -r pyproject.toml --all-extras --all-groups --strict

[zanieb]

This seems reasonable to me.