Bump org.eclipse.pde:org.eclipse.pde.ui from 3.16.300 to 3.16.400

Bumps [org.eclipse.pde:org.eclipse.pde.ui](https://github.com/eclipse-pde/eclipse.pde) from 3.16.300 to 3.16.400.
- [Commits](https://github.com/eclipse-pde/eclipse.pde/commits)

---
updated-dependencies:
- dependency-name: org.eclipse.pde:org.eclipse.pde.ui
  dependency-version: 3.16.400
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

tycho-cleancode-plugin/pom.xml

@@ -100,7 +100,7 @@
 		<dependency>
 			<groupId>org.eclipse.pde</groupId>
 			<artifactId>org.eclipse.pde.ui</artifactId>
-			<version>3.16.300</version>
+			<version>3.16.400</version>
 			<exclusions>
 				<exclusion>
 					<groupId>*</groupId>