[maven-release-plugin] prepare release v2.0.15

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>org.kiwiproject</groupId>
     <artifactId>kiwi-parent</artifactId>
-    <version>2.0.15-SNAPSHOT</version>
+    <version>2.0.15</version>
     <packaging>pom</packaging>
 
     <name>${project.groupId}:${project.artifactId}</name>
@@ -46,7 +46,7 @@
         <connection>scm:git:https://github.com/kiwiproject/kiwi-parent.git</connection>
         <developerConnection>scm:git:[email protected]:kiwiproject/kiwi-parent.git</developerConnection>
         <url>https://github.com/kiwiproject/kiwi-parent</url>
-        <tag>HEAD</tag>
+        <tag>v2.0.15</tag>
     </scm>
 
     <distributionManagement>