[maven-release-plugin] prepare for next development iteration

pom.xml

@@ -10,12 +10,12 @@
 
     <artifactId>extra-columns</artifactId>
     <packaging>hpi</packaging>
-    <version>1.27</version>
+    <version>${revision}${changelist}</version>
     <name>Extra Columns Plugin</name>
     <url>https://github.com/jenkinsci/${project.artifactId}-plugin</url>
 
     <properties>
-        <revision>1.27</revision>
+        <revision>1.28</revision>
         <changelist>-SNAPSHOT</changelist>
         <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
         <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
@@ -42,7 +42,7 @@
     <scm>
         <connection>scm:git:https://github.com/${gitHubRepo}.git</connection>
         <developerConnection>scm:git:[email protected]:${gitHubRepo}.git</developerConnection>
-        <tag>extra-columns-1.27</tag>
+        <tag>${scmTag}</tag>
         <url>https://github.com/${gitHubRepo}</url>
     </scm>