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

eclipse-signing-maven-plugin/pom.xml

diff --git a/eclipse-signing-maven-plugin/pom.xml b/eclipse-signing-maven-plugin/pom.xml
index 09e7da8..9cda06c 100644
--- a/eclipse-signing-maven-plugin/pom.xml
+++ b/eclipse-signing-maven-plugin/pom.xml
@@ -9,7 +9,7 @@
 
   <groupId>org.eclipse.dash.maven</groupId>
   <artifactId>eclipse-signing-maven-plugin</artifactId>
-  <version>1.0.5</version>
+  <version>1.0.6-SNAPSHOT</version>
   <name>Eclipse :: Dash :: Eclipse Signing Maven Plugin</name>
   <description>Plugin for signing code on the eclipse build servers.</description>
   <packaging>maven-plugin</packaging>