[fix](case) exclude test_paimon_gcs in regression config

[hello-stephen]

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[hello-stephen]

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Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
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4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[hello-stephen]

skill buildall

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PR approved by anyone and no changes requested.

[hello-stephen]

skip buildall