[maven-release-plugin] prepare release 2.4

Author: Sonartech

checkstyle-all/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.sonarsource.checkstyle</groupId>
     <artifactId>checkstyle</artifactId>
-    <version>2.4-SNAPSHOT</version>
+    <version>2.4</version>
   </parent>
 
   <name>SonarQube Checkstyle Dependency Shading</name>

pom.xml

@@ -10,7 +10,7 @@
 
   <groupId>org.sonarsource.checkstyle</groupId>
   <artifactId>checkstyle</artifactId>
-  <version>2.4-SNAPSHOT</version>
+  <version>2.4</version>
   <packaging>pom</packaging>
 
   <name>SonarQube Checkstyle</name>
@@ -52,7 +52,7 @@
     <connection>scm:git:[email protected]:SonarCommunity/sonar-checkstyle.git</connection>
     <developerConnection>scm:git:[email protected]:SonarCommunity/sonar-checkstyle.git</developerConnection>
     <url>https://github.com/SonarCommunity/sonar-checkstyle</url>
-    <tag>HEAD</tag>
+    <tag>2.4</tag>
   </scm>
   <url>http://redirect.sonarsource.com/plugins/checkstyle.html</url>
   <issueManagement>

sonar-checkstyle-plugin/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.sonarsource.checkstyle</groupId>
     <artifactId>checkstyle</artifactId>
-    <version>2.4-SNAPSHOT</version>
+    <version>2.4</version>
   </parent>
 
   <artifactId>sonar-checkstyle-plugin</artifactId>
@@ -18,7 +18,7 @@
     <connection>scm:git:[email protected]:SonarCommunity/sonar-checkstyle.git</connection>
     <developerConnection>scm:git:[email protected]:SonarCommunity/sonar-checkstyle.git</developerConnection>
     <url>https://github.com/SonarCommunity/sonar-checkstyle</url>
-    <tag>HEAD</tag>
+    <tag>2.4</tag>
   </scm>
 
   <properties>