Merge #83458

83458: backupccl: wrap error in create schedule r=stevendanna a=adityamaru

Wrap the error returned when resolving previous backups
in the collection with the actual error returned by the
ExternalStorage sink.

Release note: None

Co-authored-by: Aditya Maru <[email protected]>

pkg/ccl/backupccl/create_scheduled_backup.go

@@ -526,7 +526,7 @@ func checkForExistingBackupsInCollection(
 			collectionURI)
 	}
 	if !errors.Is(err, cloud.ErrFileDoesNotExist) {
-		return errors.Newf("unexpected error occurred when checking for existing backups in %s",
+		return errors.Wrapf(err, "unexpected error occurred when checking for existing backups in %s",
 			collectionURI)
 	}