Add set up Python step for codspeed config#1551

nathanjmcdougall wants to merge 2 commits intomainusethis-python/usethis-python:mainfrom

1549-restore-the-setup-python-action-for-codspeedusethis-python/usethis-python:1549-restore-the-setup-python-action-for-codspeedCopy head branch name to clipboard