By: Tom Sydney Kerckhove <syd@cs-syd.eu>
Run the whole test suite, internet tests included, via pure-impure Collapse the offline pytest check and the separate network-test check into a single pure-impure run of the full suite. The fixed-output derivation is granted network, so the internet-dependent tests no longer need to be deselected; all 991 tests run inside `nix flake check`.