[ISSUE #6116] fix the download links for and the sequence of source and sink

[sijia-w]

Fix: #6116

Motivation

Fix the issue 6116.

Modifications

Fix the duplicate links for source and link download and put them in alphabetical order.

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

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

(or)

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

(or)

This change added tests and can be verified as follows:

(example:)

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

Does this pull request potentially affect one of the following parts:

If yes was chosen, please highlight the changes

• Dependencies (does it add or upgrade a dependency): (yes / no)
• The public API: (yes / no)
• The schema: (yes / no / don't know)
• The default values of configurations: (yes / no)
• The wire protocol: (yes / no)
• The rest endpoints: (yes / no)
• The admin cli options: (yes / no)
• Anything that affects deployment: (yes / no / don't know)

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
• If a feature is not applicable for documentation, explain why?
• If a feature is not documented yet in this PR, please create a followup issue for adding the documentation

[vzhikserg]

I am really curious if this field is used anywhere.

[sijia-w]

I have checked it locally. The links all work well.

[vzhikserg]

This comment was not really related to your changes. The type field is not used and maybe it makes sense to remove it in the future

[sijia-w]

Okay. Thanks so much for your reply.

[Huanli-Meng]

LGTM