Upgrade the Oauth module

Upgrading from version 1.* to version 2.0.0

In this new version of the Oauth module, we have added the support of the new league/oauth2-server major version (^8.0.0).

Estimated migration time: 5 minutes

Upgrade the Oauth module to the new version:

composer require spryker/oauth: "^2.0.0" --update-with-dependencies