Upgrade to Jackson 3.0 and Gradle 8.14.3

[kz282]

Summary

This PR ugrades the project to Jackson 3.0 and Gradle 8.14.3

Changes Made

Gradle Upgrade

• Upgraded Gradle wrapper from 5.6.3 to 8.14.3
• Replaced build.gradle
• Removed project.gradle

Dependency Updates

• Upgraded to use Jackson 3.0 so the project can be used with Spring 7.0
• Updated TestNG to 7.9.0

Java Version

• Updated source/target compatibility to Java 17
• Updated Javadoc links to Java 17 API

Testing

• All existing tests pass
• Build successful with new Gradle version
• No depreciation warnings

Compatibility

• All existing functionality preserved

[christophejan]

Hello,

I was looking for a Jackson 3 compatible version and found that Jackson provides its own support of JsonPatch and JsonMergePatch since Jackson 2.12.2.

See :

• Support for JsonPatch and JsonMergePatch defined in JSON-P 1.1 #13
• jackson-datatypes-misc
• jackson-datatypes-misc>jakarta-jsonp

Even diff seems supported through Json#createDiff and Json#createMergeDiff.

I think I will try to switch to this Jackson module for JsonPatch and JsonMergePatch.