chore(refactor): refactor helm validate and set default timeout.

[WyattJia]

Pre-Checklist

Note: please complete ALL items in the following checklist.

• I have read through the CONTRIBUTING.md documentation.
• My code has the necessary comments and documentation (if needed).
• I have added relevant tests

Description

Related Issues

New Behavior (screenshots if needed)

[WyattJia]

Refer issue #786 ,@daniel-hutao please check and review my change, and thanks.

[aFlyBird0]

Hi @WyattJia , thanks for your contribution! Please join CNCF's Slack, and join our channel in CNCF Slack!
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[aFlyBird0]

And I found that the commit message check failed, here is the reason. Hope it could help you. ❤️ @WyattJia

[aFlyBird0]

LGTM. It meets the "single responsibility principle". Just go to resolve the CI failures.

[daniel-hutao]

lgtm

Please fix the doc & commit message error

[WyattJia]

@aFlyBird0 @daniel-hutao I've updated commite message and remove the "full stop", please help me check my change, very honored to participate in this contribution.