fix(keys): use newly fixed api key delete response schema from codegen

Author: tharropoulos

src/main/java/org/typesense/api/Key.java

@@ -1,7 +1,7 @@
 package org.typesense.api;
 
-import org.typesense.interfaces.ApiKeyDeleteResponse;
 import org.typesense.model.ApiKey;
+import org.typesense.model.ApiKeyDeleteResponse;
 
 public class Key {