[DEPS] Update JKube to 1.18.x

[manusa]

Description

Update Eclipse JKube from 1.16.2 to 1.18.2.

Context

JKube is used for Kubernetes deployment manifests and inner-loop development. This is a minor version update.

Files to modify

• pom.xml

Changes

<!-- Before -->
<version.jkube>1.16.2</version.jkube>

<!-- After -->
<version.jkube>1.18.2</version.jkube>

Acceptance Criteria

• JKube version updated to 1.18.2

Verification

• mvn -Pk8s k8s:resource generates valid manifests
• Deployment to test cluster works (optional)