0.2.0 Spring 6.x / Spring Boot 3.x Release

What's Changed

• Spring 6 Upgrade by @buckett in #37

This release switches to supporting Spring 6.x and Spring Boot 3.x. This release won't work with the older releases and you should continue using the 0.1.x releases for that.

Other notable changes:

• Requires that ClientRegistration are configured with their authorization_type set to implicit.
• Rejects initiation if the client ID doesn't match. This means we generate an error, rather than the tool consumer producing an error on the next step.

Full Changelog: 0.1.11...0.2.0