chore: update flake.lock

Flake lock file updates:

• Updated input 'devshell':
    'github:numtide/devshell/bc68b058dc7e6d4d6befc4ec6c60082b6e844b7d' (2024-03-11)
  → 'github:numtide/devshell/2d45b54ca4a183f2fdcf4b19c895b64fbf620ee8' (2024-03-22)
• Updated input 'flake-parts':
    'github:hercules-ci/flake-parts/f7b3c975cf067e56e7cda6cb098ebe3fb4d74ca2' (2024-03-01)
  → 'github:hercules-ci/flake-parts/9126214d0a59633752a136528f5f3b9aa8565b7d' (2024-04-01)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/7872526e9c5332274ea5932a0c3270d6e4724f3b' (2024-03-19)
  → 'github:nixos/nixpkgs/600b15aea1b36eeb43833a50b0e96579147099ff' (2024-04-07)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/7ee5aaac63c30d3c97a8c56efe89f3b2aa9ae564' (2024-03-18)
  → 'github:numtide/treefmt-nix/49dc4a92b02b8e68798abd99184f228243b6e3ac' (2024-04-01)