Bump versions-maven-plugin in /migrator/migrator-servlet

Bumps [versions-maven-plugin](https://github.com/mojohaus/versions) from 2.3 to 2.16.0.
- [Release notes](https://github.com/mojohaus/versions/releases)
- [Changelog](https://github.com/mojohaus/versions/blob/master/ReleaseNotes.md)
- [Commits](mojohaus/versions@versions-maven-plugin-2.3...2.16.0)

---
updated-dependencies:
- dependency-name: org.codehaus.mojo:versions-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

migrator/migrator-servlet/pom.xml

@@ -72,7 +72,7 @@
       <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>versions-maven-plugin</artifactId>
-        <version>2.3</version>
+        <version>2.16.0</version>
         <executions>
           <execution>
             <phase>compile</phase>