python3Packages.ruff: reuse already built ruff binary

The maturin build system cannot see that we already build the ruff binary in nixpkgs.
This leads to the ruff binary being rebuilt and placed inside of the resulting Python package.
Every nixpkgs-review that passes through the `pkgs.ruff` package therefore builds `ruff` 3 times per architecture.
Said binary was never even used due to the patching that already occurs in `find_ruff_bin`.

Especially with how time-consuming release builds can be in Rust, there is no reason to keep this package in this state.

master: `nix-build -A python3Packages.ruff` - `0.44s user 0.28s system 0% cpu 5:09.64 total`
branch: `nix-build -A python3Packages.ruff` - `0.36s user 0.12s system 9% cpu 4.856 total`

0 files changed, 0 insertions, 0 deletions