fix openshift scripts

[freeznet]

Fixes https://github.com/streamnative/function-mesh/actions/runs/6256253014/job/16987122727

Motivation

• fix bundle release action uses non-master scripts
• allow choose channel when trigger the action

Modifications

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Verifying this change

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This change is a trivial rework / code cleanup without any test coverage.

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This change is already covered by existing tests, such as (please describe tests).

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This change added tests and can be verified as follows:

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• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Documentation

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[github-actions]

@freeznet:Thanks for your contribution. For this PR, do we need to update docs?
(The PR template contains info about doc, which helps others know more about the changes. Can you provide doc-related info in this and future PR descriptions? Thanks)