uv

b81cce91 - Support `extras` and `dependency_groups` markers on `uv pip install` and `uv pip sync` (#14755)

Support `extras` and `dependency_groups` markers on `uv pip install` and `uv pip sync` (#14755) ## Summary We don't yet support writing these, but we can at least read them (which, e.g., allows you to install PDM-exported `pylock.toml` files with uv, since PDM _always_ writes a default group). Closes #14740.