Merge "Remove functional testenv for py38/py39"

Author: Zuul

tox.ini

@@ -44,7 +44,7 @@ commands =
     python -m pip freeze
     stestr run {posargs}
 
-[testenv:functional{,-tips,-py38,-py39,-py310,-py311,-py312}]
+[testenv:functional{,-tips,-py310,-py311,-py312,-py313,-py314}]
 description =
     Run functional tests.
 setenv =