Align Jackson dependencies with FasterXML BOM

[dkropachev]

Problem

Jackson dependencies currently resolve to incompatible minor versions:

• jackson-core 2.21.4
• jackson-databind 2.22.1
• jackson-annotations 2.22
• Jackson JAX-RS modules 2.21.4 in examples

jackson-databind 2.22.1 requests jackson-core 2.22.1, but dependency management forces 2.21.4. FasterXML requires Jackson core components to use the same minor version. Maven RequireUpperBoundDeps detects this mismatch.

Proposed fix

• Import jackson-bom 2.22.1 in dependencyManagement.
• Remove separate core/databind version management.
• Let example JAX-RS modules inherit BOM versions.
• Verify core tests and resolved dependency trees.