Revert "Update pyyaml from 3.12 to 4.1 (#2363)" (version not on PYPI)
Revert "Update pyyaml from 3.12 to 4.1 (#2363)" (version not on PYPI)

This reverts commit ad7338ca1ff2e8752340e65893cf73e8cbef801d.

uwcirg/true_nth_usa_portal,uwcirg/true_nth_usa_portal,uwcirg/true_nth_usa_portal,uwcirg/true_nth_usa_portal