Test excluding master from py3.8 and py3.9

Testing with salt from master against py3.8 and py3.9 is failing, but
it looks like some error with how exceptions are being raised. Just
trying without that to consider if it's worth dropping that set of
testing to at least get tests working again.

.github/workflows/test.yaml

@@ -25,6 +25,10 @@ jobs:
           - "v3006.5"
           - "master"
         exclude:
+          - py: "3.8"
+            salt: "master"
+          - py: "3.9"
+            salt: "master"
           - py: "3.10"
             salt: "v3005.4"
           - py: "3.11"

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{3.8,3.9}-{cherrypy,tornado}-{v3005.4,v3006.5,master},py{3.10,3.11}-{cherrypy,tornado}-{v3006.5,master},coverage,flake8
+envlist = py{3.8,3.9}-{cherrypy,tornado}-{v3005.4,v3006.5},py{3.10,3.11}-{cherrypy,tornado}-{v3006.5,master},coverage,flake8
 skip_missing_interpreters = true
 skipsdist = false