flake.lock: Update

Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/e91719882d0e4366202cc9058eb21df74c0bdb92?narHash=sha256-rSw0b/ahoZebcp%2BAZG7uoScB5Q59TYEE5Kx8k0pZp9E%3D' (2025-07-19)
  → 'github:nix-community/fenix/3107255abfe4f2d1c3eee7a3e2f5a5eb6f2200fe?narHash=sha256-isqMvjTk3jdTHN6KA/BWQvOSVe7O35OQKAZNtLK76OY%3D' (2025-11-01)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/330c4ed11c4e1eef0999a2cd629703a601da1436?narHash=sha256-YnG3d44oX%2Bg2ooUsNWT%2BIi24w6T%2Bb0dj86k0HkIFUj4%3D' (2025-07-18)
  → 'github:rust-lang/rust-analyzer/2e2e3ebec91215078de9b754363fc9a7b0fdef13?narHash=sha256-SreGV62DEv7kLJEcOBrw2V6Kup0siT4wS3Ye8PlFTdE%3D' (2025-10-31)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/6b4955211758ba47fac850c040a27f23b9b4008f?narHash=sha256-dPALCtmik9Wr14MGqVXm%2BOQcv7vhPBXcWNIOThGnB/Q%3D' (2025-07-19)
  → 'github:NixOS/nixpkgs/a7fc11be66bdfb5cdde611ee5ce381c183da8386?narHash=sha256-QoJjGd4NstnyOG4mm4KXF%2BweBzA2AH/7gn1Pmpfcb0A%3D' (2025-10-31)

Author: github-actions[bot]