ci: drop python 3.6 (#1507)

Co-authored-by: Erik Wrede <[email protected]>

Author: dulmandakh

.github/workflows/tests.yml

@@ -25,12 +25,11 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - {name: '3.11', python: '3.11-dev', os: ubuntu-latest, tox: py311}
+          - {name: '3.11', python: '3.11', os: ubuntu-latest, tox: py311}
           - {name: '3.10', python: '3.10', os: ubuntu-latest, tox: py310}
           - {name: '3.9', python: '3.9', os: ubuntu-latest, tox: py39}
           - {name: '3.8', python: '3.8', os: ubuntu-latest, tox: py38}
           - {name: '3.7', python: '3.7', os: ubuntu-latest, tox: py37}
-          - {name: '3.6', python: '3.6', os: ubuntu-20.04, tox: py36}
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py3{6,7,8,9,10}, mypy, pre-commit
+envlist = py3{7,8,9,10,11}, mypy, pre-commit
 skipsdist = true
 
 [testenv]
@@ -8,7 +8,7 @@ deps =
 setenv =
      PYTHONPATH = .:{envdir}
 commands =
-    py{36,37,38,39,310}: pytest --cov=graphene graphene --cov-report=term --cov-report=xml examples {posargs}
+    py{37,38,39,310,311}: pytest --cov=graphene graphene --cov-report=term --cov-report=xml examples {posargs}
 
 [testenv:pre-commit]
 basepython = python3.10