Revert "validate_solutions.py: os.getenv('GITHUB_TOKEN', '')" (#10552)

* Revert "validate_solutions.py: os.getenv('GITHUB_TOKEN', '') (#10546)"

This reverts commit 68e6d5ad7e9af8929a22a889b1182706abbfcb50.

* updating DIRECTORY.md

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

Christian Clauss committed 2y ago

4004b862d583a32cb1a809c4ea54d87635a273eb

Parent: 89d12df

Committed by GitHub <noreply@github.com> on 10/15/2023, 7:40:13 PM