updated workflows\integration.yml with correct env build

Author: ebruun

.github/workflows/integration.yml

@@ -31,6 +31,7 @@ jobs:
       - name: Install
         run: |
           python -m pip install --no-cache-dir -r requirements-dev.txt
+          pip install --no-cache-dir -e .
       - name: Run integration tests
         run: |
           pytest --doctest-modules