Bump io.fabric8:docker-maven-plugin from 0.42.0 to 0.43.4

Bumps [io.fabric8:docker-maven-plugin](https://github.com/fabric8io/docker-maven-plugin) from 0.42.0 to 0.43.4.
- [Release notes](https://github.com/fabric8io/docker-maven-plugin/releases)
- [Changelog](https://github.com/fabric8io/docker-maven-plugin/blob/master/doc/changelog.md)
- [Commits](fabric8io/docker-maven-plugin@v0.42.0...v0.43.4)

---
updated-dependencies:
- dependency-name: io.fabric8:docker-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -78,7 +78,7 @@ under the License.
             <plugin>
                 <groupId>io.fabric8</groupId>
                 <artifactId>docker-maven-plugin</artifactId>
-                <version>0.42.0</version>
+                <version>0.43.4</version>
                 <executions>
                     <execution>
                         <id>docker-build</id>