Remove empty line

Co-authored-by: Sebastian Stenzel <overheadhunter@users.noreply.github.com>

main/ui/src/main/java/org/cryptomator/ui/lock/LockWorkflow.java

@@ -57,7 +57,6 @@ public class LockWorkflow extends Task<Void> {
 				case CANCEL -> cancel(false);
 			}
 		}
-
 		return null;
 	}