nix: bump hls-src from 24aff33 to 4bfc9ca in the nix group

Bumps the nix group with 1 update: [hls-src](https://github.com/haskell/haskell-language-server).


Updates `hls-src` from `24aff33` to `4bfc9ca`
- [Release notes](https://github.com/haskell/haskell-language-server/releases)
- [Commits](haskell/haskell-language-server@24aff33...4bfc9ca)

---
updated-dependencies:
- dependency-name: hls-src
  dependency-version: 4bfc9caf60287d3fa117724986ecf96d4c131517
  dependency-type: direct:production
  dependency-group: nix
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]