Reuse .python-version in GitHub Actions (#10828)
Reuse .python-version in GitHub Actions (#10828)

* Reuse .python-version in GitHub Actions

* Apply suggestions from code review

Co-authored-by: Dustin Ingram <f502e82c25bba5a06cf68ffa87ecd02371c1a975@users.noreply.github.com>
pypa/warehouse,pypa/warehouse,pypa/warehouse,pypa/warehouse