flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/6743ada281fa6c1d5448ef8785931d6bfea635de' (2022-09-13)
  → 'github:nix-community/fenix/2c5724d70d4ded2e75672ce26e534d4e48db65ef' (2022-10-08)
• Updated input 'fenix/nixpkgs':
    'github:nixos/nixpkgs/c97e777ff06fcb8d37dcdf5e21e9eff1f34f0e90' (2022-09-11)
  → 'github:nixos/nixpkgs/37bd39839acf99c5b738319f42478296f827f274' (2022-10-05)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/2e9f1204ca01c3e20898d4a67c8b84899d394a88' (2022-09-11)
  → 'github:rust-lang/rust-analyzer/8437e4ba5864143cd3315b8c6a48bcca1192a37a' (2022-10-07)
• Updated input 'naersk/nixpkgs':
    'github:NixOS/nixpkgs/a0b7e70db7a55088d3de0cc370a59f9fbcc906c3' (2022-09-11)
  → 'github:NixOS/nixpkgs/7b06206fa24198912cea58de690aa4943f238fbf' (2022-10-08)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/a0b7e70db7a55088d3de0cc370a59f9fbcc906c3' (2022-09-11)
  → 'github:NixOS/nixpkgs/7b06206fa24198912cea58de690aa4943f238fbf' (2022-10-08)