flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/2102665784dba3f11314e37b4027794ccd324f1d' (2023-06-26)
  → 'github:nix-community/fenix/3116ee073ab3931c78328ca126224833c95e6227' (2023-09-30)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/4a2ceeff0fb53de168691b0f55d9808d221b867e' (2023-06-25)
  → 'github:rust-lang/rust-analyzer/4791a5de21735e3d9414d131a4f973da9bae0537' (2023-09-29)
• Updated input 'naersk':
    'github:nix-community/naersk/8507af04eb40c5520bd35d9ce6f9d2342cea5ad1' (2023-06-12)
  → 'github:nix-community/naersk/3f976d822b7b37fc6fb8e6f157c2dd05e7e94e89' (2023-09-07)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/07059ee2fa34f1598758839b9af87eae7f7ae6ea' (2023-06-25)
  → 'github:nixos/nixpkgs/bd9b686c0168041aea600222be0805a0de6e6ab8' (2023-09-29)