support python3.10 with later versions of websockets

Author: Adam Dyess

setup.py

@@ -36,7 +36,8 @@
         'pyyaml>=5.1.2,<=6.0',
         'theblues>=0.5.1,<1.0',
         'websockets>=7.0,<8.0 ; python_version<"3.9"',
-        'websockets>=8.0,<9.0 ; python_version>="3.9"',
+        'websockets>=8.0,<9.0 ; python_version=="3.9"',
+        'websockets>=9.0; python_version>"3.9"',
         'paramiko>=2.4.0,<3.0.0',
         'pyasn1>=0.4.4',
         'toposort>=1.5,<2',

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = lint,py3,py35,py36,py37,py38,py39
+envlist = lint,py3,py35,py36,py37,py38,py39,py310
 skipsdist=True
 
 [pytest]