flake: Update flake.lock

[eljamm]

Automated changes by the update-flake-lock GitHub Action.

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/a7fc11be66bdfb5cdde611ee5ce381c183da8386?narHash=sha256-QoJjGd4NstnyOG4mm4KXF%2BweBzA2AH/7gn1Pmpfcb0A%3D' (2025-10-31)
  → 'github:NixOS/nixpkgs/7241bcbb4f099a66aafca120d37c65e8dda32717?narHash=sha256-Yg7Ag7ov5%2B36jEFC1DaZh/12SEXo6OO3/8rqADRxiqs%3D' (2025-11-03)

Running GitHub Actions on this PR

GitHub Actions will not run workflows on pull requests which are opened by a GitHub Action.

To run GitHub Actions workflows on this PR, run:

git branch -D update_flake_lock_action
git fetch origin
git checkout update_flake_lock_action
git commit --amend --no-edit
git push origin update_flake_lock_action --force