Update guzzle dependency

Raise the minimum version of guzzle to >=6.5.8 to address GHSA-25mq-v84q-4j7r and GHSA-q559-8m2m-g699.

Update guzzle dependency

Raise the minimum version of guzzle to >=6.5.6 to address GHSA-cwmx-hcrq-mhc3.

Extended API wrapper

In this release a new endpoint sources was added to the API wrapper.

Initial release

1.0

[TASK] Use guzzle query options instead of error-prone query string