Update python-prompt-toolkit to 3.0.5 and remove python2 support
Full changelog here
Python2 support isn't used by any of existing packages in the repository.
Signed-off-by: Algent Albrahimi <email@example.com>
Test Plan: Run a few python scripts using spyder3.
Reviewers: Triage Team, JoshStrobl
Reviewed By: Triage Team, JoshStrobl
Differential Revision: https://dev.getsol.us/D9269