remove py38 and py39 from the env_list in tox.ini

Author: astanin

tox.ini

@@ -1,4 +1,4 @@
-# Tox (http://tox.testrun.org/) is a tool for running tests
+# Tox (http://tox.readthedocs.org/) is a tool for running tests
 # in multiple virtualenvs. This configuration file will run the
 # test suite on all supported python versions. To use it, "pip install tox"
 # and then run "tox" from this directory.
@@ -8,7 +8,7 @@
 # for testing and it is disabled by default.
 
 [tox]
-envlist = lint, py{38, 39, 310, 311, 312, 313, 314}
+envlist = lint, py{310, 311, 312, 313, 314}
 isolated_build = True
 
 [gh]