ci_scripts/check_versions.py: gracefully handle existence of upgrade PRs - #273

ci_scripts/check_versions.py: gracefully handle existence of upgrade PRs#273

threexc wants to merge 2 commits into

mainriseproject-dev/python-wheels:mainfrom

tgamblin/fix_check_versionsriseproject-dev/python-wheels:tgamblin/fix_check_versionsCopy head branch name to clipboard