Update build-node-python.yml

Author: dvviktordelev

.github/workflows/build-node-python.yml

@@ -217,7 +217,8 @@ jobs:
           # TODO: Create customizable variables for these?
           start: |
             yarn start dev_server_only=true
-            POSTGRES_HOSTNAME=${{ env.POSTGRES_HOSTNAME }} make start
+            export POSTGRES_HOSTNAME=${{ env.POSTGRES_HOSTNAME }}
+            make start
           wait-on: "http://localhost:8080, http://localhost:9000/health"
           env: ${{ secrets.CYPRESS_ENV }}
       - name: Run cypress component tests