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

pom.xml

@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.github.wmixvideo</groupId>
     <artifactId>nfe</artifactId>
-    <version>4.0.59</version>
+    <version>4.0.60-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>nfe</name>
@@ -44,7 +44,7 @@
         <url>[email protected]:wmixvideo/nfe.git</url>
         <connection>scm:git:[email protected]:wmixvideo/nfe.git</connection>
         <developerConnection>scm:git:[email protected]:wmixvideo/nfe.git</developerConnection>
-        <tag>v4.0.59</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <properties>