Unregister enc stream wrapper for any exception

This prevents side effects in tests by properly cleaning up
even with expected exceptions.

Signed-off-by: Vincent Petry <vincent@nextcloud.com>

lib/private/Files/Stream/Encryption.php

@@ -212,7 +212,7 @@ protected static function wrapSource($source, $context = [], $protocol = null, $
 			} else {
 				$wrapped = fopen($protocol . '://', $mode, false, $context);
 			}
-		} catch (\BadMethodCallException $e) {
+		} catch (\Exception $e) {
 			stream_wrapper_unregister($protocol);
 			throw $e;
 		}