Deploy a SASL_PLAIN Kafka listener & test notifications against it

[delthas]

Issue: ZENKO-5106

[bert-e]

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[Copilot]

Pull request overview

This PR adds support for testing SASL_PLAIN authenticated Kafka listeners with bucket notifications. It configures a new Kafka listener with SASL authentication and creates the necessary test infrastructure to verify notifications work with authenticated Kafka endpoints.

• Adds a third notification destination with SASL_PLAIN authentication support
• Configures a new Kafka listener on port 9095 with SASL authentication
• Extends test parameters and environment variables to support authenticated notifications

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tests/ctst/world/Zenko.ts	Adds interface properties for authenticated notification destination configuration
tests/ctst/steps/notifications.ts	Implements test step for setting up an authenticated notification destination
.github/workflows/end2end.yaml	Defines environment variables for authenticated destination credentials and topic
.github/scripts/end2end/run-e2e-ctst.sh	Passes authenticated notification parameters to test world configuration
.github/scripts/end2end/configure-e2e.sh	Adds Kafka topic creation for authenticated notification destination
.github/scripts/end2end/configure-e2e-ctst.sh	Configures SASL_PLAIN Kafka listener and creates authenticated notification topic
.github/scripts/end2end/configs/notification_destinations.yaml	Defines ZenkoNotificationTarget with basic authentication credentials

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[bert-e]

Waiting for approval

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[Copilot]

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