Install packages with pip instead of Setuptools in CI (ev-flow#517)

Author: zinwang

.github/workflows/pytest.yml

@@ -44,9 +44,7 @@ jobs:
         python -m pip install click==8.0.3
 
     - name: Install Quark-Engine
-      run: |
-        python setup.py build
-        python setup.py install
+      run: pip install .
 
     - name: Test with pytest
       run: |

.github/workflows/smoke_test.yml

@@ -55,9 +55,7 @@ jobs:
       if: matrix.os == 'macOS-latest'
 
     - name: Install Quark-Engine
-      run: |
-        python setup.py build
-        python setup.py install
+      run: pip install .
 
     # Download the latest rule set
     - name: Download rule from https://github.com/quark-engine/quark-rules