[maven-release-plugin] prepare release v0.6.0

Author: github-actions[bot]

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>io.github.nscuro</groupId>
     <artifactId>versatile</artifactId>
-    <version>0.6.0-SNAPSHOT</version>
+    <version>0.6.0</version>
     <packaging>jar</packaging>
 
     <name>versatile</name>
@@ -31,7 +31,7 @@
         <connection>${scm.connection}</connection>
         <developerConnection>${scm.connection}</developerConnection>
         <url>${scm.url}</url>
-        <tag>HEAD</tag>
+        <tag>v0.6.0</tag>
     </scm>
 
     <issueManagement>