Is there a way to include the bearer token as a query string param?

We are trying to integrate with an external app’s WebHook event system, but they currently do not allow for the setting of HTTP headers to include in the POST request. This makes it impossible for us to use a triggered Task’s URL directly for the web hook.

Is there another way to include the auth. bearer token? such as in the URL as query string param?

Thanks,
TK