update maven-resources-plugin

Author: sakthivelmanii

google-cloud-spanner-bom/pom.xml

@@ -113,6 +113,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>
+        <version>3.6.0</version>
         <configuration>
           <skip>true</skip>
         </configuration>