minor: tweak ci

[Young-Flash]

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[peter-jerry-ye-code-review]

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Looking at this git diff of a GitHub Actions workflow file, I notice a few potential issues:

1. Redundant Code Duplication: The same test commands are duplicated in two different job sections with identical sequences. This violates DRY (Don't Repeat Yourself) principles and makes maintenance more difficult. Consider extracting these commands into a reusable workflow or composite action.

2. Hard-coded Sleep Delays: The use of sleep 2 commands appears to be a workaround for some timing/race condition issues. This is generally not a reliable solution as the required delay might vary across different environments or conditions. Consider implementing proper wait conditions or dependency checks instead.

3. Missing Comment Documentation: The diff shows addition of new commands and sleep delays without any comments explaining why they're necessary. This makes it harder for other developers to understand the purpose of these changes, particularly the --build-only flags and sleep commands.