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/3107255abfe4f2d1c3eee7a3e2f5a5eb6f2200fe?narHash=sha256-isqMvjTk3jdTHN6KA/BWQvOSVe7O35OQKAZNtLK76OY%3D' (2025-11-01)
• 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/2e2e3ebec91215078de9b754363fc9a7b0fdef13?narHash=sha256-SreGV62DEv7kLJEcOBrw2V6Kup0siT4wS3Ye8PlFTdE%3D' (2025-10-31)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/6027c30c8e9810896b92429f0092f624f7b1aace?narHash=sha256-cnL5WWn/xkZoyH/03NNUS7QgW5vI7D1i74g48qplCvg%3D' (2025-07-25)
  → 'github:NixOS/nixpkgs/a7fc11be66bdfb5cdde611ee5ce381c183da8386?narHash=sha256-QoJjGd4NstnyOG4mm4KXF%2BweBzA2AH/7gn1Pmpfcb0A%3D' (2025-10-31)

Author: github-actions[bot]