Upgrade Jackson 2 => Jackson 3

[raymond10]

Checklist

• I have looked into the Readme and Examples, and have not found a suitable solution or answer.
• I have looked into the API documentation and have not found a suitable solution or answer.
• I have searched the issues and have not found a suitable solution or answer.
• I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• I agree to the terms within the Auth0 Code of Conduct.

Describe the problem you'd like to have solved

Hi,

Please upgrade Jackson 2 dependency to Jackson 3 version.

Regards,

Describe the ideal solution

Use latest Jackson 3 version to avoid NDF.

com/fasterxml/jackson/databind/json/JsonMapper 
java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/json/JsonMapper  
	at com.auth0.jwt.JWTCreator.<clinit>(JWTCreator.java:39)  
	at com.auth0.jwt.JWT.create(JWT.java:72)  

Alternatives and current workarounds

No response

Additional context

No response

[vmillet-dev]

I opened a PR, let's see if it's OK for maintainers. I saw that someone forked the project to put it under Jackson 3 if nothing happens here.