flake.lock: update zellij

[a-kenji-buildbot]

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

Flake lock file updates:

• Updated input 'zellij':
    'github:zellij-org/zellij/ee9aae789c0cd54a3e4d4e5bc0017217e6ef5925' (2024-04-14)
  → 'github:zellij-org/zellij/41efc0db67e875c2ff2cb256df885be28edf1b1e' (2024-04-15)

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