update 统一控制依赖版本

pom.xml

@@ -19,6 +19,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
         <maven-jar-plugin.version>3.2.2</maven-jar-plugin.version>
+        <spring-boot.mybatis>2.2.0</spring-boot.mybatis>
         <druid.version>1.2.8</druid.version>
         <knife4j.version>3.0.3</knife4j.version>
         <swagger-annotations.version>1.5.22</swagger-annotations.version>

ruoyi-extend/ruoyi-xxl-job-admin/pom.xml

@@ -10,8 +10,6 @@
     <packaging>jar</packaging>
 
     <properties>
-        <mybatis-spring-boot-starter.version>2.1.4</mybatis-spring-boot-starter.version>
-        <mysql-connector-java.version>8.0.28</mysql-connector-java.version>
     </properties>
 
     <dependencyManagement>
@@ -62,13 +60,12 @@
         <dependency>
             <groupId>org.mybatis.spring.boot</groupId>
             <artifactId>mybatis-spring-boot-starter</artifactId>
-            <version>${mybatis-spring-boot-starter.version}</version>
+            <version>${spring-boot.mybatis}</version>
         </dependency>
         <!-- mysql -->
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>${mysql-connector-java.version}</version>
         </dependency>
 
         <dependency>