gzdoom: 3.3.2 -> 3.4.0 (#42011)

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/gzdoom/versions.

These checks were done:

- built on NixOS
- Warning: no invocation of /nix/store/f4bpkw3bk3p8ca0vcxdi17hc5lm2r3jz-gzdoom-3.4.0/bin/gzdoom had a zero exit code or showed the expected version
- 0 of 1 passed binary check by having a zero exit code.
- 0 of 1 passed binary check by having the new version present in output.
- found 3.4.0 with grep in /nix/store/f4bpkw3bk3p8ca0vcxdi17hc5lm2r3jz-gzdoom-3.4.0
- directory tree listing: https://gist.github.com/1d92d331e8c24929e998260ca9018ddb
- du listing: https://gist.github.com/ba47c37ae7b73d3fb85a14b537b6c270