[maven-release-plugin] prepare for next development iteration

pom.xml

@@ -30,7 +30,7 @@ under the License.
   </parent>
 
   <artifactId>maven-javadoc-plugin</artifactId>
-  <version>3.4.0</version>
+  <version>3.4.1-SNAPSHOT</version>
   <packaging>maven-plugin</packaging>
 
   <name>Apache Maven Javadoc Plugin</name>
@@ -48,7 +48,7 @@ under the License.
     <connection>scm:git:https://gitbox.apache.org/repos/asf/maven-javadoc-plugin.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/maven-javadoc-plugin.git</developerConnection>
     <url>https://github.com/apache/maven-javadoc-plugin/tree/${project.scm.tag}</url>
-    <tag>maven-javadoc-plugin-3.4.0</tag>
+    <tag>HEAD</tag>
   </scm>
   <issueManagement>
     <system>jira</system>
@@ -77,7 +77,7 @@ under the License.
     <!-- for ITs -->
     <sitePluginVersion>3.11.0</sitePluginVersion>
     <projectInfoReportsPluginVersion>3.2.2</projectInfoReportsPluginVersion>
-    <project.build.outputTimestamp>2022-04-17T07:41:18Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2022-04-17T07:43:18Z</project.build.outputTimestamp>
     <slf4j.version>1.7.32</slf4j.version>
   </properties>