update envlist for tox,reduce number of python versions

Author: erikwrede

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
       max-parallel: 10
       matrix:
         sql-alchemy: [ "1.2", "1.3", "1.4", "2.0" ]
-        python-version: [ "3.7", "3.8", "3.9", "3.10" ]
+        python-version: ["3.9", "3.10" ]
 
     steps:
       - uses: actions/checkout@v3

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = pre-commit,py{37,38,39,310}-sql{12,13,14}
+envlist = pre-commit,py{37,38,39,310}-sql{12,13,14,20}
 skipsdist = true
 minversion = 3.7.0