Deployment webhook to accept POST requests.

[trm217]

According to coolify's API documentation, the deployment webhook requires a GET request for the deployment to be triggered (given the correct params + authorization header).
If the endpoint is called with a request using the POST HTTP-method, a 404 HTML-page is returned.

There are a bunch of services that always send post requests to configured webhooks.
For example DatoCMS, sends a POST request and doesn't allow for calling webhooks with a GET request.

I would suggest, that it would be an easy fix, for coolify to accept both a GET/POST request for the deployment webhook endpoint.

Edit: I created this PR #2539