Fix compatibility with newer versions of tox and virtualenv.
Review Request #14529 — Created July 29, 2025 and submitted — Latest diff uploaded
We were using some legacy settings and syntax for
tox, and this
prevented newer versions from running our test suite. This change
updates the configuration to use newer setting names, to fix multi-line
lists of environment names, and to install a version ofvirtualenv
with support for older versions of Python.
Ran several test suites with a modern version of
tox.