rgw/logging: add error message when log_record fails

rgw/logging: add error message when log_record fails

when log_record fails in journal mode due to issues in the target
bucket, the result code that the client get will be confusing, since
there is no indication that the issue is wit hte target bucket and not
the source bucket on which the client was operating.
the HTTP error message will be used to convey this information.

Fixes: https://tracker.ceph.com/issues/72543
Signed-off-by: Yuval Lifshitz <ylifshit@ibm.com>