Update CI workflow

Author: codingjoe

.github/workflows/ci.yml

@@ -33,13 +33,13 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - 3.6
-          - 3.7
-          - 3.8
-          - 3.9
+          - "3.6"
+          - "3.7"
+          - "3.8"
+          - "3.9"
         django-version:
-          - 2.2.*
-          - 3.1.*
+          - "2.2"
+          - "3.1"
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
@@ -59,7 +59,7 @@ jobs:
     - name: Upgrade Python setuptools
       run: python -m pip install --upgrade pip setuptools wheel codecov
     - name: Install Django version ${{ matrix.django-version }}
-      run: pip install django==${{ matrix.django-version }}
+      run: python -m pip install django~=${{ matrix.django-version }}
     - name: Run tests
       run: PATH=$PATH:$(pwd)/bin python setup.py test
     - run: codecov

tests/conftest.py

@@ -8,7 +8,7 @@
 from selenium.common.exceptions import WebDriverException
 
 
-@pytest.yield_fixture(scope="session")
+@pytest.fixture(scope="session")
 def driver():
     chrome_options = webdriver.ChromeOptions()
     chrome_options.headless = True