Update flake.lock (#12415)

flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/b0fa429fc946e6e716dff3bfb97ce6383eae9359?narHash=sha256-YmnUYXjacFHa8fWCo8gBAHpqlcG8%2BP5%2B5YYFhy6hOkg%3D' (2025-10-25)
  → 'github:nix-community/fenix/3107255abfe4f2d1c3eee7a3e2f5a5eb6f2200fe?narHash=sha256-isqMvjTk3jdTHN6KA/BWQvOSVe7O35OQKAZNtLK76OY%3D' (2025-11-01)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/51236f731456f305bac2b48682f8e1fa3032c989?narHash=sha256-KzRamhMnHTBEbYM0lZqozwc9BEYOTBMxVyAtDyiRq3s%3D' (2025-10-24)
  → 'github:rust-lang/rust-analyzer/2e2e3ebec91215078de9b754363fc9a7b0fdef13?narHash=sha256-SreGV62DEv7kLJEcOBrw2V6Kup0siT4wS3Ye8PlFTdE%3D' (2025-10-31)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/02f2cb8e0feb4596d20cc52fda73ccee960e3538?narHash=sha256-tH3wHnOJms%2BU4k/rK2Nn1RfBrhffX92jLP/2VndSn0w%3D' (2025-10-24)
  → 'github:NixOS/nixpkgs/a7fc11be66bdfb5cdde611ee5ce381c183da8386?narHash=sha256-QoJjGd4NstnyOG4mm4KXF%2BweBzA2AH/7gn1Pmpfcb0A%3D' (2025-10-31)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]