Test browserstack creds

.github/workflows/github_actions.yml

@@ -5,6 +5,13 @@ on:
     branches: [ master ]
       
 jobs:
+  test-browserstacks-creds:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Test BrowserStack credentials
+        run: |
+          curl -u "${{ secrets.BROWSERSTACK_USERNAME }}:${{ secrets.BROWSERSTACK_ACCESS_KEY }}" https://api.browserstack.com/automate/plan.json
+
   approve:
     runs-on: ubuntu-latest