Fix bug for filterSensitiveLog for Map inside Collection

Author: trivikr

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/StructuredMemberWriter.java

@@ -88,7 +88,7 @@ void writeFilterSensitiveLogForCollection(TypeScriptWriter writer, MemberShape c
             );
         } else if (memberShape instanceof MapShape) {
             // Iterate over Object entries, and call reduce to repopulate map
-            writer.openBlock("item => Object.entries(item).reduce(", ")",
+            writer.openBlock("item => Object.entries(item).reduce(", "), {}",
                 () -> {
                     MemberShape mapMember = ((MapShape) memberShape).getValue();
                     writeFilterSensitiveLogForMap(writer, mapMember);