[maven-release-plugin] prepare release 3.4.0

Author: slawekjaranowski

pom.xml

@@ -9,7 +9,7 @@
   </parent>
 
   <artifactId>build-helper-maven-plugin</artifactId>
-  <version>3.4.0-SNAPSHOT</version>
+  <version>3.4.0</version>
   <packaging>maven-plugin</packaging>
 
   <name>Build Helper Maven Plugin</name>
@@ -59,7 +59,7 @@
   <scm>
     <connection>scm:git:https://github.com/mojohaus/build-helper-maven-plugin.git</connection>
     <developerConnection>scm:git:ssh://[email protected]/mojohaus/build-helper-maven-plugin.git</developerConnection>
-    <tag>HEAD</tag>
+    <tag>3.4.0</tag>
     <url>https://github.com/mojohaus/build-helper-maven-plugin/tree/master</url>
   </scm>
 
@@ -80,7 +80,7 @@
     <!-- remove with parent upgrade -->
     <maven-release-plugin.version>3.0.0</maven-release-plugin.version>
     <scmpublish.content>${project.build.directory}/staging/build-helper-maven-plugin</scmpublish.content>
-    <project.build.outputTimestamp>2022-01-18T09:14:02Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2023-05-11T22:02:29Z</project.build.outputTimestamp>
   </properties>
 
   <dependencies>