[serve] Document how to silence access logs from GradioIngress

[zcin]

Description

Access logs are printed at a really high rate for the serve-gradio integrated deployment, GradioIngress. Users will likely be interested in how to silence these messages; we should add this to the documentation.

Link

No response

[cszhu]

This P2 issue has seen no activity in the past 2 years. It will be closed in 2 weeks as part of ongoing cleanup efforts.

Please comment and remove the pending-cleanup label if you believe this issue should remain open.

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