added github action for unit tests

.github/workflows/unit_test.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -r requirements.txt  # Replace with your requirements file if applicable
+        pip install -r requirements.txt 
 
     - name: Run pytest
       run: |