[maven-release-plugin] prepare release v0.3.3

pom.xml

@@ -9,7 +9,7 @@
     </parent>
     <groupId>io.jenkins.plugins</groupId>
     <artifactId>calendar-view</artifactId>
-    <version>0.3.3-SNAPSHOT</version>
+    <version>0.3.3</version>
     <packaging>hpi</packaging>
     <properties>
         <jenkins.version>2.7.3</jenkins.version>
@@ -39,7 +39,7 @@
         <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>HEAD</tag>
+      <tag>v0.3.3</tag>
   </scm>
     <repositories>
         <repository>