rgw/compression antibug check

rgw/compression antibug check

If another bug tells the compression filter to decompress more
data than is actually present, the resulting "end_of_buffer"
error was thrown.  The thrown exception unwinds the stack,
including a completion that is pending.  The resulting core dump
indicates a failure with this completion rather than the end of buffer
exception, which is misleading and not useful.

With this change, radosgw does not abort, and instead logs
a somewhat useful message before returning an "unknown" error
to the client.

Fixes: https://tracker.ceph.com/issues/23264
Signed-off-by: Marcus Watts <mwatts@redhat.com>