rgw: set retcode on verify_bucket_permission in RGWObjFetchCR

On destination bucket `verify_bucket_permission()` in `RGWObjFetchCR()`
use `set_cr_error()` to return `-EPERM` so it can be reflected in
`RGWBucketSyncSingleEntryCR()` for skipping on `-EPERM`.

Fixes: https://tracker.ceph.com/issues/69450
Signed-off-by: Seena Fallah <[email protected]>

Author: clwluvw

src/rgw/driver/rados/rgw_data_sync.cc

@@ -3021,7 +3021,7 @@ class RGWObjFetchCR : public RGWCoroutine {
 
           if (!dest_bucket_perms.verify_bucket_permission(dest_key.value_or(key), rgw::IAM::s3PutObject)) {
             ldout(cct, 0) << "ERROR: " << __func__ << ": permission check failed: user not allowed to write into bucket (bucket=" << sync_pipe.info.dest_bucket.get_key() << ")" << dendl;
-            return -EPERM;
+            return set_cr_error(-EPERM);
           }
         }