Fix: Activate micone environment in each step

.github/workflows/build.yml

@@ -26,13 +26,15 @@ jobs:
         micone init --env micone-sparcc
     - name: Lint with flake8
       run: |
+        source activate micone
         pip install flake8
         # stop the build if there are Python syntax errors or undefined names
         flake8 micone --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 micone --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Test with pytest
       run: |
+        source activate micone
         pytest --cov=micone
     - name: "Upload coverage to Codecov"
       uses: codecov/codecov-action@v1