[maven-release-plugin] prepare release twincolgrid-2.9.0

Author: FlowingCodeCI

pom.xml

@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.flowingcode.vaadin.addons</groupId>
 	<artifactId>twincolgrid</artifactId>
-	<version>2.9.0-SNAPSHOT</version>
+	<version>2.9.0</version>
 	<name>TwinColGrid add-on</name>
     <properties>
         <vaadin.version>14.8.1</vaadin.version>
@@ -51,7 +51,7 @@
         <url>https://github.com/FlowingCode/TwinColGridAddon</url>
         <connection>scm:git:git://github.com/FlowingCode/TwinColGridAddon.git</connection>
         <developerConnection>scm:git:ssh://[email protected]:/FlowingCode/TwinColGridAddon.git</developerConnection>
-        <tag>HEAD</tag>
+        <tag>twincolgrid-2.9.0</tag>
     </scm>
 
     <dependencyManagement>