Merge pull request #5817 from balajialg/gh-scoped-creds-env

[DH-314] Fixing the issue with gh-scoped-creds config in Dev hub

deployments/dev/config/common.yaml

@@ -71,7 +71,7 @@ jupyterhub:
         description: "A newer repo2docker-based image with a primary focus of building dashboards."
         kubespawner_override:
           image: us-central1-docker.pkg.dev/ucb-datahub-2018/user-images/dev-secondary:36280727a
-          extra_env:
+          env:
             GH_SCOPED_CREDS_CLIENT_ID: "Iv23liFjgKFgkSBWph4C"
             GH_SCOPED_CREDS_APP_URL: "https://github.com/apps/test-gh-scoped-creds"
       - display_name: "1524699: DataHub Infrastructure"