helm deployment: edgex-ui-go does not work

# 🐞 Bug Report

### Affected Services [**REQUIRED**]
edgex-ui

### Is this a regression?
This has probably always been broken in the Kubernetes deployment in secure mode.

### Description and Minimal Reproduction [**REQUIRED**]

See [discussion](https://github.com/orgs/edgexfoundry/discussions/179) for original bug report.

## 🔥 Exception or Error

edgex-ui-go container logs contains:


/(target service)/api/v3/ping

2023/09/20 18:03:53 http: proxy error: context deadline exceeded

## 🌍 Your Environment
**Deployment Environment:** kubernetes

**EdgeX Version [**REQUIRED**]:** main (pending 3.1)

**Anything else relevant?**