Refs #34986 -- Added PyPy to tox.ini.

tox.ini

@@ -26,7 +26,7 @@ setenv =
     PYTHONDONTWRITEBYTECODE=1
 deps =
     -e .
-    py{3,310,311,312}: -rtests/requirements/py3.txt
+    py{3,310,311,312,py3}: -rtests/requirements/py3.txt
     postgres: -rtests/requirements/postgres.txt
     mysql: -rtests/requirements/mysql.txt
     oracle: -rtests/requirements/oracle.txt