flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/6743ada281fa6c1d5448ef8785931d6bfea635de' (2022-09-13)
  → 'github:nix-community/fenix/22d9337eda8bf666622388c84a130ec3663ce2e8' (2022-10-01)
• Updated input 'fenix/nixpkgs':
    'github:nixos/nixpkgs/c97e777ff06fcb8d37dcdf5e21e9eff1f34f0e90' (2022-09-11)
  → 'github:nixos/nixpkgs/854fdc68881791812eddd33b2fed94b954979a8e' (2022-09-28)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/2e9f1204ca01c3e20898d4a67c8b84899d394a88' (2022-09-11)
  → 'github:rust-lang/rust-analyzer/5b7e40014ef172839108af860487fe4209a02135' (2022-09-30)
• Updated input 'naersk/nixpkgs':
    'github:NixOS/nixpkgs/a0b7e70db7a55088d3de0cc370a59f9fbcc906c3' (2022-09-11)
  → 'github:NixOS/nixpkgs/14c5d226877aa90f656895ab7ab2badc4af03268' (2022-10-01)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/a0b7e70db7a55088d3de0cc370a59f9fbcc906c3' (2022-09-11)
  → 'github:NixOS/nixpkgs/14c5d226877aa90f656895ab7ab2badc4af03268' (2022-10-01)