Update werrorwolf to 0.4.0 and ghc-common-hadrian to 0.5.0
Pin inputs to post-nixica-migration tagged releases:
- werrorwolf 0.3.0 → 0.4.0
- ghc-common-hadrian 0.4.1 → 0.5.0
Per @locallycompact feedback on !28: all nix group project inputs should reference versions that use nixica 0.1.0.