[pom] Fix tag

Author: hazendaz

pom.xml

@@ -112,7 +112,7 @@
     <url>https://github.com/mybatis/mybatis-3</url>
     <connection>scm:git:ssh://git@github.com/mybatis/mybatis-3.git</connection>
     <developerConnection>scm:git:ssh://git@github.com/mybatis/mybatis-3.git</developerConnection>
-    <tag>mybatis-3.5.12</tag>
+    <tag>HEAD</tag>
   </scm>
   <issueManagement>
     <system>GitHub Issue Management</system>