Span trace for Laravel HTTP Client Requests

[atymic]

Hey!

Would be awesome to add support for tracing http requests made via the laravel HTTP client. Should be fairly easy as events are fired.

https://laravel.com/docs/9.x/http-client#events

[stayallive]

It seems you've done some research on it and calling it "fairly easy", want to take a stab at creating a PR?

[atymic]

Sure can do :)
Will PR shortly.

[cleptric]

Done in #585 and to be released in v3.0.0