Bump maven-dependency-plugin in /dockerfile-image-update-itest

Bumps [maven-dependency-plugin](https://github.com/apache/maven-dependency-plugin) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/apache/maven-dependency-plugin/releases)
- [Commits](apache/maven-dependency-plugin@maven-dependency-plugin-3.3.0...maven-dependency-plugin-3.4.0)

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

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

Author: dependabot[bot]

dockerfile-image-update-itest/pom.xml

@@ -76,7 +76,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-dependency-plugin</artifactId>
-                <version>3.3.0</version>
+                <version>3.4.0</version>
                 <executions>
                     <execution>
                         <id>analyze</id>