adds environment

Author: vigneshk-tw

.github/workflows/build-test-lint.yml

@@ -59,7 +59,8 @@ jobs:
 
             - name: Run Test
               run: |
-                # source venv/bin/activate
+                python -m venv venv
+                source venv/bin/activate
                 pytest -v
               working-directory: xero-python
               continue-on-error: true