Revert "build(pip): Enable the new 2020 resolver (#21443)" (#21453)
Revert "build(pip): Enable the new 2020 resolver (#21443)" (#21453)

This reverts commit 00910954c21560dd2568ae352132694dc5ed9bce.
beeftornado/sentry,beeftornado/sentry,beeftornado/sentry