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

pom.xml

@@ -18,13 +18,13 @@
 
     <artifactId>Office-365-Connector</artifactId>
     <name>Office 365 Connector</name>
-    <version>4.21.0</version>
+    <version>${revision}${changelist}</version>
     <packaging>hpi</packaging>
     <description>This plugin sends Job notifications to JenkinsCI Office 365 Connector.</description>
     <url>https://github.com/jenkinsci/office-365-connector-plugin</url>
 
     <properties>
-        <revision>4.20.3</revision>
+        <revision>4.21.1</revision>
         <changelist>-SNAPSHOT</changelist>
         <jenkins.version>2.401.3</jenkins.version>
 
@@ -146,7 +146,7 @@
         <connection>scm:git:https://github.com/${gitHubRepo}.git</connection>
         <developerConnection>scm:git:[email protected]:${gitHubRepo}.git</developerConnection>
         <url>https://github.com/${gitHubRepo}</url>
-        <tag>Office-365-Connector-4.21.0</tag>
+        <tag>${scmTag}</tag>
     </scm>
     <ciManagement>
         <system>Jenkins</system>