ci: fix github actions

Author: remigermain

.github/workflows/main.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   build:
     name: Python ${{ matrix.python-version }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     strategy:
       matrix:
@@ -35,7 +35,6 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install flake8 pytest
           if [ -f requirements/dev.txt ]; then pip install -r requirements/dev.txt; fi
 
       - name: Lint with flake8
@@ -47,4 +46,5 @@ jobs:
 
       - name: Test with pytest
         run: |
-          pytest
+          python -m pytest -v -s --cov=nested_multipart_parser --cov-report=xml --capture=tee-sys ./tests
+          python -m coverage report -m

requirements/dev.txt

@@ -3,4 +3,5 @@ Django
 djangorestframework
 
 pytest
-pytest-cov
+pytest-cov
+flake8