Fix steps in test

.github/workflows/default.yml

@@ -68,7 +68,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest 
+        pip install pytest 
     - name: Install windows dependencies
       if: ${{ matrix.os == 'windows-latest' }}
       run: |
@@ -77,9 +77,6 @@ jobs:
       if: ${{ matrix.os == 'macos-latest' }}
       run: | 
         pip install pyobjc-framework-Cocoa
-    - name: Build python modules
-      run: |
-        python build.py --modules
     - name: Run tests
       run: |
-        pytest core hscommon
+        pytest