Fix failing build due to missing requirement (#8900)

* feat(cellular_automata): Create wa-tor algorithm

* updating DIRECTORY.md

* chore(quality): Implement algo-keeper bot changes

* build: Fix broken ci

* git rm cellular_automata/wa_tor.py

* updating DIRECTORY.md

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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>