[maven-release-plugin] prepare release 0.1.6

Author: w.vela

pom.xml

@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.github.phantomthief</groupId>
     <artifactId>simple-failover</artifactId>
-    <version>0.1.6-SNAPSHOT</version>
+    <version>0.1.6</version>
 
     <properties>
         <junit-jupiter.version>5.0.2</junit-jupiter.version>