Fix rest API logging

[bbovenzi]

Part of https://github.com/apache/airflow/issues/22352

Try to improve action logging in the REST API. Include api.{name_of_function}. We should probably try to capture more information for extra but audit log now reads like so:

This is a draft to get feedback on the format and then I will do it for basically all PATCH, PUT, POST, DELETE endpoints

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[vincbeck]

LGTM

[bbovenzi]

Made extra a json object instead of a tuple. Added request body to extra. And hiding sensitive fields for connections and variables:

[jscheffl]

Looks good for me!

[bbovenzi]

Closing in favor of https://github.com/apache/airflow/pull/37734

I want to leave changes to variables+connections API and the extra field as a separate effort