[Enhancement] Support that user can use show data skew statement instead of admin

[caiconghui]

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• I had searched in the issues and found no similar issues.

Description

now only admin can execute show data skew statement which is inconvenient for general user

Solution

Support that user can use show data skew statement instead of admin

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct