Added secret from mongodb URI

Author: atvanek

.github/workflows/main.yml

@@ -32,6 +32,8 @@ jobs:
         run: npm install
       - name: Run all tests
         run: npm run test
+          env:
+            MONGO_DB: ${{ secrets.MONGO_DB }}
 
       # Runs a set of commands using the runners shell
       - name: Run a multi-line script