Use scm-publish plugin version from CP40 (and ensure it is defined)

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1744101 13f79535-47bb-0310-9956-ffa450edef68

Author: sebbASF

pom.xml

@@ -242,6 +242,7 @@ limitations under the License.
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-scm-publish-plugin</artifactId>
+          <version>${commons.scm-publish.version}</version>
           <configuration>
             <ignorePathsToDelete>
               <ignorePathToDelete>archive**</ignorePathToDelete>