split jackson versions

[janjwerner-confluent]

Description

Allow for bringing two separate versions of jackson dependencies.

1. for druid processing / core that requires jackson 2.12
2. for the remaining modules bring in updated 2.15 version

This change should hopefully help us move away from Snakeyaml 1.x in compile scope and keep it only as a test dependency.

This PR has:

• been self-reviewed.
  • using the concurrency checklist (Remove this item if the PR doesn't have any relation to concurrency.)
• added documentation for new or modified features or behaviors.
• a release note entry in the PR description.
• added Javadocs for most classes and all non-trivial methods. Linked related entities via Javadoc links.
• added or updated version, license, or notice information in licenses.yaml
• added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• added unit tests or modified existing tests to cover new code paths, ensuring the threshold for code coverage is met.
• added integration tests.
• been tested in a test Druid cluster.

[xvrl]

if we plan to go down that route, I would suggest we do it the other way around, upgrade core and make 2.15 the default. Explicitly depend on 2.12 for extensions that cannot upgrade.

[janjwerner-confluent]

Closing this PR as I likely won't have the cycles to contribute to this approach.
The goal of removing Snakeyaml 1.x from the distribution should be achieved in #15549