chore(nix): Update dependencies.

Flake lock file updates:

• Updated input 'haskell-nix':
    'github:input-output-hk/haskell.nix/7bcd019c70e1929d733ed0bf5349c747ce0ee66a?narHash=sha256-ZFcyUXcxU9k5tkv/t5deuQ8PRY0Q0/uk8MLHUb2eXEs%3D' (2024-07-18)
  → 'github:input-output-hk/haskell.nix/4a1119544a4fb95851f5177eb08636ef2bc7ecfc?narHash=sha256-DvtCcDfx9O1vJ28yPH30Ji9qOmdptwToku315XS2dQM%3D' (2024-07-20)
• Updated input 'haskell-nix/hackage':
    'github:input-output-hk/hackage.nix/beaee455c56dee413b33f89f6ebd0520ff435295?narHash=sha256-J/VaA4xWMpp43HptVP2tpfLwIYCg%2BOrBova4Uh5R8C8%3D' (2024-07-18)
  → 'github:input-output-hk/hackage.nix/bb98a9438c4d652601869b92979093cc73503a92?narHash=sha256-CskHvenAQdX0wXtA29Zvk/r1QX2O4Rjja%2BBhMfDtUP8%3D' (2024-07-20)
• Updated input 'haskell-nix/stackage':
    'github:input-output-hk/stackage.nix/a55d366b4ab71687ce60d428a775a4ecc824a658?narHash=sha256-FhQK%2BUGKGBJCyLo8NBhU65QKm5loHS/APUKno/9jO/U%3D' (2024-07-18)
  → 'github:input-output-hk/stackage.nix/33160362221aed58db258b5cf7f30f8956870aac?narHash=sha256-I7fzy2F%2BUP%2BRNlYuuauDGPzdez7zcJGYWpwpgDXKvZo%3D' (2024-07-20)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/0fb28f237f83295b4dd05e342f333b447c097398?narHash=sha256-gCICMMX7VMSKKt99giDDtRLkHJ0cwSgBtDijJAqTlto%3D' (2024-07-15)
  → 'github:numtide/treefmt-nix/50104496fb55c9140501ea80d183f3223d13ff65?narHash=sha256-GYpibTC0YYKRpFR9aftym9jjRdUk67ejw1IWiaQkaiU%3D' (2024-07-19)