flake.lock: Update (#163)

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/8001e62f21df863304287c63f01fcc0c24c91816' (2023-12-16)
  → 'github:nix-community/fenix/a941fe943bd7c4c683d8aa8e1a3a1d0595516051' (2024-02-24)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/21b06c1beb9bb59369ffd652f5d617bcf6952e05' (2023-12-15)
  → 'github:rust-lang/rust-analyzer/03b3cb6be9f21c082f4206b35c7fe7f291c94eaa' (2024-02-23)
• Updated input 'flake-utils':
    'github:numtide/flake-utils/4022d587cbbfd70fe950c1e2083a02621806a725' (2023-12-04)
  → 'github:numtide/flake-utils/1ef2e671c3b0c19053962c07dbda38332dcebf26' (2024-01-15)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/a9bf124c46ef298113270b1f84a164865987a91c' (2023-12-11)
  → 'github:nixos/nixpkgs/cbc4211f0afffe6dfd2478a62615dd5175a13f9a' (2024-02-23)
• Updated input 'rust-overlay':
    'github:oxalica/rust-overlay/2a186e207c9ef8e3eef114259044fc2f92043d59' (2023-12-16)
  → 'github:oxalica/rust-overlay/9b24383d77f598716fa0cbb8b48c97249f5ee1af' (2024-02-24)
• Updated input 'rust-overlay/flake-utils':
    'github:numtide/flake-utils/cfacdce06f30d2b68473a46042957675eebb3401' (2023-04-11)
  → 'github:numtide/flake-utils/1ef2e671c3b0c19053962c07dbda38332dcebf26' (2024-01-15)
• Updated input 'rust-overlay/nixpkgs':
    'github:NixOS/nixpkgs/96ba1c52e54e74c3197f4d43026b3f3d92e83ff9' (2023-04-13)
  → 'github:NixOS/nixpkgs/90f456026d284c22b3e3497be980b2e47d0b28ac' (2024-01-29)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>