[Bug] An error will be reported when the proxy_url environment variable uses a domain name（deploy using docker）

### Bug Description

When deploying using docker, an error will be reported if the proxy url uses a domain name.
It only works if you change it to a numeric IP address

### Steps to Reproduce

docker run -d -p 3000:3000 \
-e OPENAI_API_KEY=sk-xxxx \
-e CODE=your-password \
-e PROXY_URL=http://domina_name:7890 \
yidadaa/chatgpt-next-web

### Expected Behavior

docker runs successfully

### Screenshots


### Deployment Method

- [X] Docker
- [ ] Vercel
- [ ] Server

### Desktop OS

truenas

### Desktop Browser

_No response_

### Desktop Browser Version

_No response_

### Smartphone Device

_No response_

### Smartphone OS

_No response_

### Smartphone Browser

_No response_

### Smartphone Browser Version

_No response_

### Additional Logs

_No response_