Guzzle version is incompatible with Laravel 8

[mattfletcher]

This package requires no higher than version 6 of Guzzle, but Laravel 8 requires version 7. Any chance of pushing an update that will be compatible with Guzzle 7?

[kz]

Hi Matt, thanks for bringing this to my attention. I don't have the time to maintain this project to keep up to date with Laravel, however, would you be interested in making a PR?