Removing pytest-cov from dependencies

Author: nss10

.github/workflows/ci.yaml

@@ -61,7 +61,7 @@ jobs:
           pip install -r requirements.txt
           echo "Installing dependencies to run the unit tests"
           pip install jwcrypto==1.5.6
-          pip install pytest pytest-cov
+          pip install pytest
       - name: Run test
         run: |
           cd bmh_admin_portal_backend/lambdas/lambda_authorizer