Note

Medium Risk
Dependency upgrade may change JSON/YAML serialization/deserialization behavior and transitive dependency resolution, despite no direct code changes.

Overview
Updates the build’s pinned Jackson versions by upgrading jackson-databind and jackson-dataformat-yaml from 2.20.0 to 2.21.1 in gradle/versions.gradle.

Adds a corresponding Security changelog entry noting the Jackson dependency update in CHANGELOG.md.

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