[maven-release-plugin] prepare release git-4.8.0

Author: MarkEWaite

pom.xml

@@ -17,7 +17,7 @@
   </licenses>
 
   <artifactId>git</artifactId>
-  <version>${revision}${changelist}</version>
+  <version>4.8.0</version>
   <packaging>hpi</packaging>
   <name>Jenkins Git plugin</name>
   <description>Integrates Jenkins with Git SCM</description>
@@ -287,7 +287,7 @@
     <connection>scm:git:git://github.com/${gitHubRepo}.git</connection>
     <developerConnection>scm:git:[email protected]:${gitHubRepo}.git</developerConnection>
     <url>https://github.com/${gitHubRepo}</url>
-    <tag>${scmTag}</tag>
+    <tag>git-4.8.0</tag>
   </scm>
 
   <repositories>