chore: add make help cmd

[yyzxw]

What problem does this PR solve?

add make help command. result:

What is changed and how does it work?

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test
• No code

Side effects

• Breaking backward compatibility
• Other side effects:

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release Notes

Please refer to Release Notes Language Style Guide before writing the release note.

[csuzhangxc]

@yyzxw thanks for your great contributor, please fix the CI by adding a newline at the end of the Makefile file.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: csuzhangxc

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• OWNERS [csuzhangxc]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-06-28 01:53:48.633170286 +0000 UTC m=+758994.034420720: ☑️ agreed by csuzhangxc.