!519 修复duckdb 方言配置，duckdb 方言总体类似于 PG 方言

Merge pull request !519 from young/main

mybatis-flex-core/src/main/java/com/mybatisflex/core/dialect/DialectFactory.java

@@ -153,7 +153,7 @@ public class DialectFactory {
             case TRINO:
                 return new CommonsDialectImpl(KeywordWrap.NONE, LimitOffsetProcessor.SQLSERVER);
             case DUCKDB:
-                return new CommonsDialectImpl(KeywordWrap.DOUBLE_QUOTATION, LimitOffsetProcessor.MYSQL);
+                return new CommonsDialectImpl(KeywordWrap.DOUBLE_QUOTATION, LimitOffsetProcessor.POSTGRESQL);
             default:
                 return new CommonsDialectImpl();
         }