♻️ - update the usage of ObjectMapper

[julien-pinta-pivot]

Description

1st commit : Use a static object mapper to avoid re-creating a new one each time we call the method
2nd commit : Register to modules the new way doc

Types of changes

• Docs change / refactoring / dependency upgrade
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Requires a change to the official Guide documentation.

[ianardee]

Thanks a lot for your contribution!

I've given you access to running action on this repo, but they will fail since our secrets will not be transferred over.

So I've opened up another PR just to run all integration tests, here: #304

If everything runs we will merge there and close this PR.

[ianardee]

Merged! We will make a release tomorrow morning.

[julien-pinta-pivot]

Merged! We will make a release tomorrow morning.

Thank you !

[ianardee]

Version 4.43.1 has been published with the changes.
It may take some time to percolate through all Maven repositories, but is available here:

https://repo1.maven.org/maven2/com/mindee/sdk/mindee-api-java/4.43.1/