Bump io.fabric8:docker-maven-plugin from 0.43.2 to 0.43.4 (#979)

Bumps [io.fabric8:docker-maven-plugin](https://github.com/fabric8io/docker-maven-plugin) from 0.43.2 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](https://github.com/fabric8io/docker-maven-plugin/commits)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

examples/configmap/pom.xml

@@ -85,7 +85,7 @@
       <plugin>
         <groupId>io.fabric8</groupId>
         <artifactId>docker-maven-plugin</artifactId>
-        <version>0.43.2</version>
+        <version>0.43.4</version>
         <configuration>
           <verbose>true</verbose>
           <registry>docker-registry:5000</registry>