Change spring-aop dep to compile scope in contacts sample

samples/contacts/pom.xml

@@ -43,7 +43,6 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-aop</artifactId>
-            <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>