[maven-release-plugin] prepare release git-3.12.1

Author: MarkEWaite

pom.xml

@@ -16,7 +16,7 @@
   </licenses>
 
   <artifactId>git</artifactId>
-  <version>${revision}${changelist}</version>
+  <version>3.12.1</version>
   <packaging>hpi</packaging>
   <name>Jenkins Git plugin</name>
   <description>Integrates Jenkins with GIT SCM</description>
@@ -306,7 +306,7 @@
     <connection>scm:git:git://github.com/jenkinsci/${project.artifactId}-plugin.git</connection>
     <developerConnection>scm:git:[email protected]:jenkinsci/${project.artifactId}-plugin.git</developerConnection>
     <url>https://github.com/jenkinsci/${project.artifactId}-plugin</url>
-    <tag>${scmTag}</tag>
+    <tag>git-3.12.1</tag>
   </scm>
 
   <pluginRepositories>