fix: polish test formatting

Author: igdianov

graphql-jpa-query-schema/src/test/java/com/introproventures/graphql/jpa/query/schema/GraphQLExecutorTests.java

@@ -602,9 +602,10 @@ public void queryForAuthorssWithWhereBooksManyToOneRelationCriteria() {
                 "}";
 
         String expected = "{Authors={select=[{"
-                +   "id=1, name=Leo Tolstoy, books=[{id=2, title=War and Peace, genre=NOVEL, author={name=Leo Tolstoy}}, "
-                +   "{id=3, title=Anna Karenina, genre=NOVEL, author={name=Leo Tolstoy}}"
-                + "]}"
+                +   "id=1, name=Leo Tolstoy, books=["
+                +       "{id=2, title=War and Peace, genre=NOVEL, author={name=Leo Tolstoy}}, "
+                +       "{id=3, title=Anna Karenina, genre=NOVEL, author={name=Leo Tolstoy}}"
+                +   "]}"
                 + "]}}";
 
         //when