refactor: move away from deprecated interfaces

[fpicalausa]

Use the newer (non-deprecated) token builder methods to build the id_token.

[steverhoades]

@fpicalausa Thanks for the contribution. Can you please include the minimum version of the oauth2-server this change is compatible with?

[fpicalausa]

@fpicalausa Thanks for the contribution. Can you please include the minimum version of the oauth2-server this change is compatible with?

@steverhoades Thanks for building this library! It's been really useful.

The deprecation is actually occuring in lcobucci/jwt, starting with version 3.3 in preparation for moving to 4.0.
I checked oauth2-server for compatibility, as well:

• 5.1 and 6.0 both require lcobucci/jwt=^3.1.
• 7.0 should be requires lcobucci/jwt=^3.2.2.
• 8.0 should be requires lcobucci/jwt=^3.3.1.

From the version range, I think requiring lcobucci/jwt=^3.3 should be safe, but let me know if there are other things we should check first.

[steverhoades]

@fpicalausa Thanks for that, since this is a breaking change I'll need to update the major version of this library. When you get an opportunity could you update the Readme to indicate the new minimum version requirements?