将 promotion 模块接入 SCA Dubbo 和 Nacos Discovery 组件，同时将 Seata 修改成 SCA Seata 组件

promotion/pom.xml

@@ -17,4 +17,16 @@
         <module>promotion-application</module>
     </modules>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>cn.iocoder.mall</groupId>
+                <artifactId>common-dependencies</artifactId>
+                <version>1.0-SNAPSHOT</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
 </project>