feat(packages/scripts): add script gen-delivery-tiup-script.sh

[wuhuizuo]

usage:
./packages/scripts/gen-delivery-tiup-script.sh true|false

example:
./packages/scripts/gen-delivery-tiup-script.sh hub.pingcap.net/pingcap/tidb/package:v8.1.0-pre_darwin_amd64 false xxx.sh
Signed-off-by: wuhuizuo wuhuizuo@126.com

[ti-chi-bot]

I have already done a preliminary review for you, and I hope to help you do a better job.

Summary:

This pull request adds a new script gen-delivery-tiup-script.sh, which generates a publish script for TiUP packages. It takes a few arguments, including the OCI artifact URL and a flag indicating whether it's a nightly build. The script uses yq and oras to fetch the artifact config and generate the publish script.

Potential problems:

1. The pull request does not include any test cases, which makes it hard to verify whether the script works as expected. It would be better to include some unit tests or integration tests to ensure the script's correctness.
2. There are no comments in the code, which makes it hard for other developers to understand what the code does and how it works. Adding some comments would make the code more readable and easier to maintain.

Fixing suggestions:

1. Add some test cases to verify the correctness of the script. The tests should cover various scenarios, including different types of artifacts, nightly builds, and error cases.
2. Add some comments to explain the code's logic and how it works. The comments should be clear and concise and should not repeat what the code does. They should focus on explaining why the code does what it does and any assumptions or requirements.
3. Consider refactoring the code to make it more modular and reusable. For example, the code that fetches the artifact config could be extracted into a separate function that could be used by other scripts. Similarly, the code that generates the publish script could be split into smaller functions that could be tested and reused.

[wuhuizuo]

I have tested it manually, but comment the tiup publish step, just run the post check steps for the existing tiup packages.

[wuhuizuo]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: wuhuizuo

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