Merge pull request #534 from rabbitmq/dependabot/maven/org.apache.maven.plugins-maven-jar-plugin-3.4.0

Bump org.apache.maven.plugins:maven-jar-plugin from 3.3.0 to 3.4.0

Author: acogoluegnes

pom.xml

@@ -79,7 +79,7 @@
     <maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
     <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
     <maven-javadoc-plugin.version>3.6.3</maven-javadoc-plugin.version>
-    <maven.jar.plugin.version>3.3.0</maven.jar.plugin.version>
+    <maven.jar.plugin.version>3.4.0</maven.jar.plugin.version>
     <build-helper-maven-plugin.version>3.4.0</build-helper-maven-plugin.version>
     <asciidoctor.maven.plugin.version>3.0.0</asciidoctor.maven.plugin.version>
     <asciidoctorj.version>2.5.12</asciidoctorj.version>