flake.lock: Update

Flake lock file updates:

• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/4e29820f6d9880606a403e7bec6e91312e7f0575' (2023-02-26)
  → 'github:rust-lang/rust-analyzer/0840038f02daec6ba3238f05d8caa037d28701a0' (2023-09-30)
• Updated input 'naersk':
    'github:nix-community/naersk/d998160d6a076cfe8f9741e56aeec7e267e3e114' (2022-12-15)
  → 'github:nix-community/naersk/3f976d822b7b37fc6fb8e6f157c2dd05e7e94e89' (2023-09-07)
• Updated input 'nix/flake-compat':
    'github:edolstra/flake-compat/0f9255e01c2351cc7d116c072cb317785dd33b33' (2023-10-04)
  → 'github:edolstra/flake-compat/35bb57c0c8d8b62bbfd284272c928ceb64ddbde9' (2023-01-17)
• Updated input 'nix/nixpkgs':
    'github:NixOS/nixpkgs/22723a1d7deab53e5c1022906089e4247a5d3e77' (2023-10-09)
  → 'github:NixOS/nixpkgs/31ed632c692e6a36cfc18083b88ece892f863ed4' (2023-09-21)