Added unit tests to Github Actions

Author: seanlaw

.github/workflows/github-actions.yml

@@ -20,4 +20,6 @@ jobs:
       - name: Run Black
         run: black --check --diff ./
       - name: Run Flake8
-        run: flake8 ./
+        run: flake8 ./
+      - name: Run Unit Tests
+        run: ./test.sh unit