flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/2102665784dba3f11314e37b4027794ccd324f1d' (2023-06-26)
  → 'github:nix-community/fenix/ce22ab2b2c8aec8593713d077bbce8f0e3fe8d3e' (2023-08-19)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/4a2ceeff0fb53de168691b0f55d9808d221b867e' (2023-06-25)
  → 'github:rust-lang/rust-analyzer/c0f6ece3c47b6486731367153a66be0790d13dec' (2023-08-18)
• Updated input 'naersk':
    'github:nix-community/naersk/8507af04eb40c5520bd35d9ce6f9d2342cea5ad1' (2023-06-12)
  → 'github:nix-community/naersk/78789c30d64dea2396c9da516bbcc8db3a475207' (2023-08-18)
• Updated input 'nixpkgs':
    'github:nixos/nixpkgs/07059ee2fa34f1598758839b9af87eae7f7ae6ea' (2023-06-25)
  → 'github:nixos/nixpkgs/ca3c9ac9f4cdd4bea19f592b32bb59b74ab7d783' (2023-08-19)