Add GCC and GNU Make to the Nix flake development environment so that `ruff`...

Add GCC and GNU Make to the Nix flake development environment so that `ruff` can be compiled. (#16090)

* Add gcc and GNU make to the Nix flake

* Newsfile

Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>

* unset LD_LIBRARY_PATH

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Signed-off-by: Olivier Wilkinson (reivilibre) <oliverw@matrix.org>