build(deps): bump fenix from 1f07645 to 5bf88a0

Bumps [fenix](https://github.com/nix-community/fenix) from `1f07645` to `5bf88a0`.
- [Commits](nix-community/fenix@1f07645...5bf88a0)

---
updated-dependencies:
- dependency-name: fenix
  dependency-version: 5bf88a04d8678c7334f2f5072975f3b2cb0fe1ba
  dependency-type: direct:production
...

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Author: dependabot[bot]