chore: update flake.lock (#501)

Flake lock file updates:

• Updated input 'devshell':
    'github:numtide/devshell/5ddecd67edbd568ebe0a55905273e56cc82aabe3?narHash=sha256-O5%2BnFozxz2Vubpdl1YZtPrilcIXPcRAjqNdNE8oCRoA%3D' (2024-02-26)
  → 'github:numtide/devshell/bc68b058dc7e6d4d6befc4ec6c60082b6e844b7d?narHash=sha256-4PMY6aumJi5dLFjBzF5O4flKXmadMNq3AGUHKYfchh0%3D' (2024-03-11)
• Updated input 'flake-utils':
    'github:numtide/flake-utils/d465f4819400de7c8d874d50b982301f28a84605?narHash=sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8%3D' (2024-02-28)
  → 'github:numtide/flake-utils/b1d9ab70662946ef0850d488da1c9019f3a9752a?narHash=sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ%3D' (2024-03-11)
• Updated input 'nixpkgs-unstable':
    'github:nixos/nixpkgs/f592a7ea771bc3c417f7e3026af615d0c6be84ce?narHash=sha256-joYx0arQtHM/7VhUY5ByP%2Bjlf8XeJkK2fBdri8vK918%3D' (2024-03-10)
  → 'github:nixos/nixpkgs/d211b80d2944a41899a6ab24009d9729cca05e49?narHash=sha256-Tf2zqUWgU1iofcECQ%2Bxj7HJVtoCz6yWG/oEIDmXxwXg%3D' (2024-03-16)
• Updated input 'treefmt-nix':
    'github:numtide/treefmt-nix/9c57261c71871d2208a6dd4394774cca226c6dbc?narHash=sha256-yC2iOKe0BSZAeXLNPXPrsGn5BwUTYYZESKb%2BOblLnXY%3D' (2024-03-08)
  → 'github:numtide/treefmt-nix/35791f76524086ab4b785a33e4abbedfda64bd22?narHash=sha256-Oc6BP7soXqb8itlHI8UKkdf3V9GeJpa1S39SR5%2BHJys%3D' (2024-03-12)

Co-authored-by: Bottie McBotFace <[email protected]>