chore: update flake.lock

[github-actions]

Automated changes by the update-flake-lock GitHub Action.

Flake lock file updates:

• Updated input 'devshell':
    'github:numtide/devshell/05d40d17bf3459606316e3e9ec683b784ff28f16' (2023-09-20)
  → 'github:numtide/devshell/cd4e2fda3150dd2f689caeac07b7f47df5197c31' (2023-09-29)
• Updated input 'hercules-ci-effects':
    'github:hercules-ci/hercules-ci-effects/0a63bfa3f00a3775ea3a6722b247880f1ffe91ce' (2023-07-15)
  → 'github:hercules-ci/hercules-ci-effects/91fae5824f5f1199f61693c6590b4a89abaed9d7' (2023-09-25)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/e12483116b3b51a185a33a272bf351e357ba9a99' (2023-09-21)
  → 'github:nixos/nixpkgs/bd9b686c0168041aea600222be0805a0de6e6ab8' (2023-09-29)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/7a49c388d7a6b63bb551b1ddedfa4efab8f400d8' (2023-09-12)
  → 'github:numtide/treefmt-nix/720bd006d855b08e60664e4683ccddb7a9ff614a' (2023-09-27)

Running GitHub Actions on this PR

GitHub Actions will not run workflows on pull requests which are opened by a GitHub Action.

To run GitHub Actions workflows on this PR, run:

git branch -D update_flake_lock_action
git fetch origin
git checkout update_flake_lock_action
git commit --amend --no-edit
git push origin update_flake_lock_action --force

[selfuryon]

LGTM