flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/ea96690b28eb5a859d28bcf02887a26e3854e4f3?narHash=sha256-CciuT/8HI/BR%2By%2BW2/FyHRDpchbKQ9wA8ABJiio0CE8%3D' (2024-10-12)
  → 'github:nix-community/fenix/8519a70a1a81db2dd22316f94c25d7510218169e?narHash=sha256-DwKpay17BJ8XhWn2PVhNEUS98qql2LZ/z37ZbGwdZCM%3D' (2024-12-07)
• Updated input 'fenix/nixpkgs':
    'github:nixos/nixpkgs/5633bcff0c6162b9e4b5f1264264611e950c8ec7?narHash=sha256-9UTxR8eukdg%2BXZeHgxW5hQA9fIKHsKCdOIUycTryeVw%3D' (2024-10-09)
  → 'github:nixos/nixpkgs/d0797a04b81caeae77bcff10a9dde78bc17f5661?narHash=sha256-kEsTJTUQfQFIJOcLYFt/RvNxIK653ZkTBIs4DG%2BcBns%3D' (2024-12-05)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/0fb804acb375b02a3beeaceeb75b71969ef37b15?narHash=sha256-QFPMazeiGLo7AGy4RREmTgko0Quch/toMVKhGUjDEeo%3D' (2024-10-09)
  → 'github:rust-lang/rust-analyzer/17720acb90105cbd736d3e78d736eb5d41af89a5?narHash=sha256-EP/qkXR1CN4vIi5atysuKsQBXuolYnU3rVdLxUv0XqM%3D' (2024-12-06)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/5633bcff0c6162b9e4b5f1264264611e950c8ec7?narHash=sha256-9UTxR8eukdg%2BXZeHgxW5hQA9fIKHsKCdOIUycTryeVw%3D' (2024-10-09)
  → 'github:NixOS/nixpkgs/d0797a04b81caeae77bcff10a9dde78bc17f5661?narHash=sha256-kEsTJTUQfQFIJOcLYFt/RvNxIK653ZkTBIs4DG%2BcBns%3D' (2024-12-05)