[maven-release-plugin] prepare release v3.14.0

pom.xml

@@ -1,26 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>edu.hm.hafner</groupId>
     <artifactId>codingstyle-pom</artifactId>
     <version>3.40.0</version>
-    <relativePath/>
+    <relativePath />
   </parent>
 
   <groupId>edu.hm.hafner</groupId>
   <artifactId>autograding-github-action</artifactId>
-  <version>3.14.0-SNAPSHOT</version>
+  <version>3.14.0</version>
   <packaging>jar</packaging>
 
   <scm>
     <connection>scm:git:https://github.com/uhafner/autograding-github-action.git</connection>
     <developerConnection>scm:git:git@github.com:uhafner/autograding-github-action.git</developerConnection>
     <url>https://github.com/uhafner/autograding-github-action</url>
-    <tag>HEAD</tag>
+    <tag>v3.14.0</tag>
   </scm>
 
   <properties>