Update vendor containers/(common,storage,buildah,image)

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

vendor/github.com/containers/storage/pkg/mount/unmount_unix.go

@@ -22,9 +22,8 @@ func unmount(target string, flags int) error {
 			// can be returned if flags are invalid, so this code
 			// assumes that the flags value is always correct.
 			return nil
-		default:
-			break
 		}
+		break
 	}
 
 	return &mountError{