fix(deps): bump org.apache.maven.plugins:maven-clean-plugin (eclipse-lsp4e#1031)

Bumps [org.apache.maven.plugins:maven-clean-plugin](https://github.com/apache/maven-clean-plugin) from 3.3.2 to 3.4.0.
- [Release notes](https://github.com/apache/maven-clean-plugin/releases)
- [Commits](apache/maven-clean-plugin@maven-clean-plugin-3.3.2...maven-clean-plugin-3.4.0)

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

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org.eclipse.lsp4e/pom.xml

@@ -17,7 +17,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-clean-plugin</artifactId>
-				<version>3.3.2</version>
+				<version>3.4.0</version>
 				<configuration>
 					<filesets>
 						<fileset>