[maven-release-plugin] prepare release v2.12

Author: kmozsi

pom.xml

@@ -4,7 +4,7 @@
     <artifactId>convertapi</artifactId>
     <packaging>jar</packaging>
 
-    <version>2.12-SNAPSHOT</version>
+    <version>2.12</version>
     <name>ConvertAPI Java Client</name>
     <description>
         The ConvertAPI helps to convert various file formats.
@@ -48,7 +48,7 @@
         <connection>scm:git:git://github.com/ConvertAPI/convertapi-java.git</connection>
         <developerConnection>scm:git:[email protected]:ConvertAPI/convertapi-java.git</developerConnection>
         <url>https://github.com/ConvertAPI/convertapi-java</url>
-        <tag>HEAD</tag>
+        <tag>v2.12</tag>
     </scm>
 
     <distributionManagement>