[maven-release-plugin] prepare release git-client-6.6.0

Author: MarkEWaite

pom.xml

@@ -27,13 +27,13 @@
   <scm>
     <connection>scm:git:https://github.com/${gitHubRepo}</connection>
     <developerConnection>scm:git:git@github.com:${gitHubRepo}.git</developerConnection>
-    <tag>${scmTag}</tag>
+    <tag>git-client-6.6.0</tag>
     <url>https://github.com/${gitHubRepo}</url>
   </scm>
 
   <properties>
     <revision>6.6.0</revision>
-    <changelist>-SNAPSHOT</changelist>
+    <changelist></changelist>
     <!-- Character set tests fail unless file.encoding is set -->
     <argLine>-Dfile.encoding=${project.build.sourceEncoding}</argLine>
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>