fix: mysql warn

yudao-framework/yudao-spring-boot-starter-mybatis/pom.xml

@@ -30,8 +30,8 @@
 
         <!-- DB 相关 -->
         <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
+            <groupId>com.mysql</groupId>
+            <artifactId>mysql-connector-j</artifactId>
         </dependency>
         <dependency>
             <groupId>com.oracle.database.jdbc</groupId>