Feedback url is not receiving

I am currently experiencing an issue with Gorush feedback URL configuration. Despite successfully receiving push notifications and responses in the console log, no response is being sent to the specified feedback_hook_url.

Core Configuration:

```
core:
feedback_hook_url: "https://example.com/notification-response/feedback-url/"
feedback_timeout: 10
feedback_header:
- x-gorush-token: 12345
mode: "release"
ssl: false
cert_path: "cert.pem"
key_path: "key.pem"
cert_base64: ""
key_base64: ""
http_proxy: ""
pid:
enabled: false
path: "gorush.pid"
override: true
auto_tls:
enabled: false
folder: ".cache"
host: ""

```
```

# Request body
curl --location 'http://localhost:8088/api/push' \
--data '{
"notifications": [
{
"tokens": [
"Token1"
],
"platform": 2,
"message": "This is my msg"
}
]
}'

```

# Problem:
**Expected behavior:** The response should be sent to the configured feedback_hook_url.
**Actual behavior:** No response is being sent to the feedback_hook_url. However, the response is being logged in the console.

# Additional Information:
- The core is running in release mode.
- SSL is disabled.
- Feedback headers are properly configured with a token.