Fix nightly test can not canceled issue

[ZePan110]

Description

Fix nightly test can not canceled issue

Issues

List the issue or RFC link this PR is working on. If there is no such link, please mark it as n/a.

Type of change

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would break existing design and interface)
• Others (enhancement, documentation, validation, etc.)

Dependencies

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Tests

https://github.com/opea-project/GenAIExamples/actions/runs/14854945974

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues found.

Scanned Files

None

[Copilot]

Pull Request Overview

This PR addresses an issue with the nightly test cancellation behavior by updating the workflow configuration.

• Update the EXAMPLES environment variable to a hard-coded value ("CodeGen,CodeTrans")
• Change the publish job condition from "always()" to "success()" to adjust when the publish step is executed

Comments suppressed due to low confidence (2)

.github/workflows/nightly-docker-build-publish.yml:12

• Hardcoding the EXAMPLES values may bypass dynamic configuration intended by the original variable; please verify that this change is deliberate and does not negatively impact other workflow behavior.

EXAMPLES: CodeGen,CodeTrans #${{ vars.NIGHTLY_RELEASE_EXAMPLES }}

.github/workflows/nightly-docker-build-publish.yml:78

• Changing the condition from always() to success() might prevent the publish step from running in cases where previous steps fail or are cancelled; confirm that this new trigger condition meets the intended workflow requirements for handling cancellations.

if: ${{ success() }}

[chensuyue]

remove test code.