feat: Add control plane analytics data ingestion changelog and changelog image

[cloudjumpercat]

Description

Added a changelog and image for the new way to manage analytics data ingestion for control planes in Konnect.

DOCU-3763

Testing instructions

Preview link:

Checklist

• [x] Review label added
• [x] Conditional version tags added, if applicable.

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[Guaris]

Cherry picked this into https://github.com/Kong/docs.konghq.com/pull/7546, closing this in favor of that one.