chore: update CI env file

.github/workflows/unit_test.yml

@@ -14,12 +14,11 @@ jobs:
     - name: Install dependencies
       uses: conda-incubator/setup-miniconda@v3
       with:
+        activate-environment: python-v38
         environment-file: environment.yml
         miniforge-version: latest
     - name: Test with pytest
-      run: |
-        # pip install -r requirements.txt
-        $CONDA/bin/python -m pytest
+      run: python -m pytest
 
     # steps:
     # - uses: actions/checkout@v3