Add proxy for MEILI_TASK_WEBHOOK_URL

[tacman]

I'd like the MEILI_TASK_WEBHOOK_URL to go through a proxy, so that I can test on a Symfony project.

The Symfony proxy and CLI allows you to call a website like "my-project.wip' and it will use the appropriate port on a development machine.

Even better would be if the tasks themselves could take a URL and proxy, since in my case multiple websites use the same meili instance. There is already a feature request for that somewhere. I realize that's considerably more difficult that adding a proxy to the webhook.

Given the async nature of meilisearch, the webhook seems like a great feature.

[Kerollmops]

Hey @tacman 👋

It's not complex to implement. You could add a new parameter to meilisearch named task-webhook-proxy. Then follow the code until you find the right place to use this proxy.

Happy coding ⚽

[dureuill]

Should we maybe respect the "somewhat-standard" proxy environment variables? Or should we allow to override the proxy per task?