Update GitHub Workflow

.github/workflows/unittest.yml

@@ -7,21 +7,20 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: [3.8, 3,9]
     name: GitHub Action
     steps:
     - name: Checkout
       uses: actions/checkout@v2
+    - name: Install dependencies
+      run: |
+        python -m pip install -r requirements-dev.txt
     - name: Lint
       run: |
-        pip3 install --upgrade pip wheel setuptools
-        pip3 install pylint
-        python3 -m pylint check_http_json.py
+        make lint
     - name: Unit Test
       run: |
-        python3 -m unittest discover
+        make test
     - name: Coverage
       run: |
-        pip3 install coverage
-        python3 -m coverage run -m unittest discover
-        python3 -m coverage report -m --include check_http_json.py
+        make coverage

requirements-dev.txt

@@ -0,0 +1,2 @@
+coverage==6.4.4
+pylint==2.15.2