Bump org.apache.maven.plugins:maven-jar-plugin from 3.2.0 to 3.4.2 (#364)

Bumps [org.apache.maven.plugins:maven-jar-plugin](https://github.com/apache/maven-jar-plugin) from 3.2.0 to 3.4.2.
- [Release notes](https://github.com/apache/maven-jar-plugin/releases)
- [Commits](apache/maven-jar-plugin@maven-jar-plugin-3.2.0...maven-jar-plugin-3.4.2)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-jar-plugin
  dependency-version: 3.4.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

spring-cloud-zookeeper-core/pom.xml

@@ -25,7 +25,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-jar-plugin</artifactId>
-				<version>3.2.0</version>
+				<version>3.4.2</version>
 				<executions>
 					<execution>
 						<goals>