Alter github action

Author: mielvds

.github/workflows/main.yaml

@@ -62,10 +62,14 @@ jobs:
         git clone --depth 1 https://github.com/w3c/json-ld-framing.git _json-ld-framing
         git clone --depth 1 https://github.com/json-ld/normalization.git _normalization
     - name: Test with Python=${{ matrix.python-version }} Loader=${{ matrix.loader }}
+      # run: |
+      #   python tests/runtests.py ./_json-ld-api/tests -l ${{ matrix.loader }}
+      #   python tests/runtests.py ./_json-ld-framing/tests -l ${{ matrix.loader }}
+      #   python tests/runtests.py ./_normalization/tests -l ${{ matrix.loader }}
       run: |
-        python tests/runtests.py ./_json-ld-api/tests -l ${{ matrix.loader }}
-        python tests/runtests.py ./_json-ld-framing/tests -l ${{ matrix.loader }}
-        python tests/runtests.py ./_normalization/tests -l ${{ matrix.loader }}
+        pytest --tests=./_json-ld-api/tests --loader=${{ matrix.loader }}
+        pytest --tests=./_json-ld-framing/tests --loader=${{ matrix.loader }}
+        pytest --tests=./_normalization/tests --loader=${{ matrix.loader }}
       env:
         LOADER: ${{ matrix.loader }}
   #coverage: