flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/b6630603af13df17d0dd4df8629e9a24e6ba0fbd' (2022-06-18)
  → 'github:nix-community/fenix/441b2aeebfb0582ce300becebcf8ffb58300d9ec' (2022-07-23)
• Updated input 'fenix/nixpkgs':
    'github:nixos/nixpkgs/3d7435c638baffaa826b85459df0fff47f12317d' (2022-06-16)
  → 'github:nixos/nixpkgs/a65b5b3f5504b8b89c196aba733bdf2b0bd13c16' (2022-07-21)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/12dd81092e37df28b7a3591cae9675e668927198' (2022-06-17)
  → 'github:rust-lang/rust-analyzer/0b131bc78eece8be69b5d3633f4db04cf2c1151b' (2022-07-22)
• Updated input 'naersk/nixpkgs':
    'github:NixOS/nixpkgs/103a4c0ae46afa9cf008c30744175315ca38e9f9' (2022-06-17)
  → 'github:NixOS/nixpkgs/52dd719bbd13d9f0974e5c3c29c74aa249e5b091' (2022-07-23)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/103a4c0ae46afa9cf008c30744175315ca38e9f9' (2022-06-17)
  → 'github:NixOS/nixpkgs/52dd719bbd13d9f0974e5c3c29c74aa249e5b091' (2022-07-23)
• Updated input 'utils':
    'github:numtide/flake-utils/1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1' (2022-05-30)
  → 'github:numtide/flake-utils/7e2a3b3dfd9af950a856d66b0a7d01e3c18aa249' (2022-07-04)