upgrade connect image

[davetroiano]

No description provided.

[Copilot]

Pull Request Overview

This pull request upgrades the Confluent Connect image versions across multiple Docker Compose configurations from version 0.6.4-7.6.0 to 0.6.7-8.0.0.

Key changes:

• Updates datagen connector image versions from 0.6.4-7.6.0 to 0.6.7-8.0.0
• Applies the upgrade consistently across all three deployment configurations
• Maintains existing service configurations while only changing the image versions

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
cp-all-in-one/docker-compose.yml	Updates cp-server-connect-datagen image to version 0.6.7-8.0.0
cp-all-in-one-community/docker-compose.yml	Updates kafka-connect-datagen image to version 0.6.7-8.0.0
cp-all-in-one-cloud/docker-compose.yml	Updates cp-server-connect-datagen image to version 0.6.7-8.0.0

[confluent-cla-assistant]

🎉 All Contributor License Agreements have been signed. Ready to merge.
_{Please push an empty commit if you would like to re-run the checks to verify CLA status for all contributors.}