[Python] Disable soft delete policy when creating new default bucket.

[shunping]

addresses #31330 in Python SDK. The logic is similar to #31324.

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[shunping]

R: @Abacn

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Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control

[shunping]

Run Python_Transforms PreCommit 3.8

[shunping]

Run Python_Transforms PreCommit 3.9

[shunping]

Run Python_Transforms PreCommit 3.10

[shunping]

Run Python_Transforms PreCommit 3.11