fix: force the number of standby to always be zero for transient queries

[wcarlson5]

to prevent the transient queries from creating standby replicas when they shouldn't I force the number to be set to zero before the stream is made

Reviewer checklist

• Ensure docs are updated if necessary. (eg. if a user visible feature is being added or changed).
• Ensure relevant issues are linked (description should include text like "Fixes #")
• Do these changes have compatibility implications for rollback? If so, ensure that the ksql command version is bumped.

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