Setup legacy scram proxy in the new account (#3461)

This setup proxies with *.cloud.neon.tech certificate in the us-west-2
region of the new account, we are not switching to them here yet

.github/workflows/build_and_test.yml

@@ -1186,15 +1186,19 @@ jobs:
           - target_region:  us-east-2
             target_cluster: prod-us-east-2-delta
             deploy_link_proxy: true
+            deploy_legacy_scram_proxy: false
           - target_region:  us-west-2
             target_cluster: prod-us-west-2-eta
             deploy_link_proxy: false
+            deploy_legacy_scram_proxy: true
           - target_region: eu-central-1
             target_cluster: prod-eu-central-1-gamma
             deploy_link_proxy: false
+            deploy_legacy_scram_proxy: false
           - target_region: ap-southeast-1
             target_cluster: prod-ap-southeast-1-epsilon
             deploy_link_proxy: false
+            deploy_legacy_scram_proxy: false
     environment:
       name: prod-${{ matrix.target_region }}
     steps:
@@ -1220,6 +1224,12 @@ jobs:
           DOCKER_TAG=${{needs.tag.outputs.build-tag}}
           helm upgrade neon-proxy-link neondatabase/neon-proxy --namespace neon-proxy --create-namespace --install --atomic -f .github/helm-values/${{ matrix.target_cluster }}.neon-proxy-link.yaml --set image.tag=${DOCKER_TAG} --set settings.sentryUrl=${{ secrets.SENTRY_URL_PROXY }} --wait --timeout 15m0s
 
+      - name: Re-deploy legacy scram proxy
+        if: matrix.deploy_legacy_scram_proxy
+        run: |
+          DOCKER_TAG=${{needs.tag.outputs.build-tag}}
+          helm upgrade neon-proxy-scram-legacy neondatabase/neon-proxy --namespace neon-proxy --create-namespace --install --atomic -f .github/helm-values/${{ matrix.target_cluster }}.neon-proxy-scram-legacy.yaml --set image.tag=${DOCKER_TAG} --set settings.sentryUrl=${{ secrets.SENTRY_URL_PROXY }} --wait --timeout 15m0s
+
   deploy-storage-broker-prod-new:
     runs-on: prod
     container: 093970136003.dkr.ecr.eu-central-1.amazonaws.com/ansible:latest