flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/25db7a6f4de7dea678620785e03fbc4560c00672?narHash=sha256-wC9PR%2BrPjmcpnPdOIDwyNwQiRhNsuDs3oZY3t42f4uA%3D' (2025-07-26)
  → 'github:nix-community/fenix/60e24f4371b1676d4ecf7d0e8325233acc9b40df?narHash=sha256-S3PJcarvDv54CT2JL8e3LyZZ9myBQNBkuSlazQ6qwys%3D' (2025-08-09)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/51e77c9d7b9b99f7a230bf5179ef1343befd71ac?narHash=sha256-5XbVpJwiy%2Bsw1v4PXSAz4lgJnVna6xkzqyZtoHymFJA%3D' (2025-07-25)
  → 'github:rust-lang/rust-analyzer/caef0f46fd97175e6c1894189689c098c4cb536f?narHash=sha256-rGSOEooq0u38dzvn677G14DGm3ue9UDQ9c1E4qyfcuU%3D' (2025-08-07)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/6027c30c8e9810896b92429f0092f624f7b1aace?narHash=sha256-cnL5WWn/xkZoyH/03NNUS7QgW5vI7D1i74g48qplCvg%3D' (2025-07-25)
  → 'github:NixOS/nixpkgs/00b574b1ba8a352f0601c4dde4faff4b534ebb1e?narHash=sha256-WrZ280bT6NzNbBo%2BCKeJA/NW1rhvN/RUPZczqCpu2mI%3D' (2025-08-09)

Author: github-actions[bot]