useEnumCaseInsensitive option fixed in Java Native Model Enum (#18762)

Author: oguzdemirbasci

modules/openapi-generator/src/main/resources/Java/libraries/native/modelEnum.mustache

@@ -59,7 +59,7 @@ import java.net.URI;
 {{/jackson}}
   public static {{{datatypeWithEnum}}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}} fromValue({{{dataType}}} value) {
     for ({{{datatypeWithEnum}}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}} b : {{{datatypeWithEnum}}}{{^datatypeWithEnum}}{{{classname}}}{{/datatypeWithEnum}}.values()) {
-      if (b.value.equals(value)) {
+      if (b.value.{{^isString}}equals{{/isString}}{{#isString}}{{#useEnumCaseInsensitive}}equalsIgnoreCase{{/useEnumCaseInsensitive}}{{^useEnumCaseInsensitive}}equals{{/useEnumCaseInsensitive}}{{/isString}}(value)) {
         return b;
       }
     }