Add Python 3.11 release candidate 1 to the testing (#1450)

* Add Python 3.11 release candidate 1 to the testing

https://www.python.org/download/pre-releases

* Update tests.yml

Author: cclauss

.github/workflows/tests.yml

@@ -25,22 +25,22 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - {name: '3.11', python: '3.11-dev', 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-latest, tox: py36 }
+          - {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-latest, tox: py36}
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-python@v3
+      - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}
 
       - name: update pip
         run: |
-          pip install -U wheel
-          pip install -U setuptools
-          python -m pip install -U pip
+          python -m pip install --upgrade pip
+          pip install --upgrade setuptools wheel
 
       - name: get pip cache dir
         id: pip-cache