Bump Quarkus version to use latest Jackson lib. Update Readme.

[carlosedp]

This PR registers the Scala EnumModule automatically (if exists) to the default ObjectMapper.

Reflect this simplification to the Readme.

[carlosedp]

I'd like to update this now that the enum module has been incorporated into jackson scala module 2.17 and Quarkus 3.9.3 started using the 2.17 jackson lib.

Also i'll update the readme accordingly (although I dont use Gradle and know nothing about it, I'll update the Maven section).

[carlosedp]

I think this will improve usability but needs Quarkus 3.9.3 or newer. I'll gladly update it all.

[carlosedp]

Updated this PR for latest Quarkus version where jackson Scala module already have Enums. Also updated Readme with a newer template for Gradle and Maven use.