flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/6643d56d9a78afa157b577862c220298c09b891d?narHash=sha256-vmbu97JXqr9/sTWR5XRh646jkp8a0J9m0o6JIQTdjE4%3D' (2025-06-28)
  → 'github:nix-community/fenix/910743660778c55917959d64980bf046f52142ef?narHash=sha256-xXZ0JkrpcpSgeuhezJZV2T%2B7gHcYCo39ogc55c4FyRw%3D' (2025-07-12)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/317542c1e4a3ec3467d21d1c25f6a43b80d83e7d?narHash=sha256-hMNZXMtlhfjQdu1F4Fa/UFiMoXdZag4cider2R9a648%3D' (2025-06-25)
  → 'github:rust-lang/rust-analyzer/a489123e806ceadfdc5568bf9609b0468f5a2e6a?narHash=sha256-eRDeo/hVnf958ESWy8qV/jZj4ZRbFXsmMdw1cnI57dE%3D' (2025-07-11)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/80d50fc87924c2a0d346372d242c27973cf8cdbf?narHash=sha256-3u6rEbIX9CN/5A5/mc3u0wIO1geZ0EhjvPBXmRDHqWM%3D' (2025-06-27)
  → 'github:NixOS/nixpkgs/2a2130494ad647f953593c4e84ea4df839fbd68c?narHash=sha256-Q82Ms%2BFQmgOBkdoSVm%2BFBpuFoeUAffNerR5yVV7SgT8%3D' (2025-07-08)

Author: github-actions[bot]