update env secrets in the test-backend.yml

Author: monicasmith463

.github/workflows/test-backend.yml

@@ -12,6 +12,11 @@ on:
 jobs:
   test-backend:
     runs-on: ubuntu-latest
+    env:
+      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+      AWS_REGION: ${{ secrets.AWS_REGION }}
+      S3_BUCKET: ${{ secrets.S3_BUCKET }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4