Feature: log object remove operations to target databend::log::audit

[dantengsky]

Summary

change logging of sensitive operations, like removing objects:

databend/src/query/storages/common/io/src/files.rs

Lines 99 to 108 in 13c79d9

	info!("deleting files {:?}", &locations);
	let num_of_files = locations.len();
	op.delete_iter(locations).await?;
	info!(
	"deleted files, number of files {}, time used {:?}",
	num_of_files,
	start.elapsed(),
	);

to dedicate log target databend::log::audit, like this:

databend/src/query/service/src/interpreters/interpreter_suspend_warehouse.rs

Lines 61 to 65 in 6362ff4

	log::info!(
	target: "databend::log::audit",
	"{}",
	serde_json::to_string(&AuditElement::create(&user_info, "suspend_warehouse", &self.plan))?
	);