Reduce org.json usage in aai-common

Reduce org.json usage in aai-common

- org.json [is slow](https://github.com/fabienrenaud/java-json-benchmark?tab=readme-ov-file#users-model)
- Jackson should be consistently used everywhere
- only XmlFormatTransformer is left, but that warrants a dedicated change with
  (likely) further tests since it appears to be quite a critical execution path
- remove unused imports
- update org.json to a non-vulnerable version

Issue-ID: AAI-4085
Change-Id: I84610523447d70a1729348392ffd302d17e9379d
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>