Bump io.fabric8:docker-maven-plugin from 0.48.1 to 0.49.0 (#1935)

Bumps [io.fabric8:docker-maven-plugin](https://github.com/fabric8io/docker-maven-plugin) from 0.48.1 to 0.49.0.
- [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/compare/v0.48.1...v0.49.0)

---
updated-dependencies:
- dependency-name: io.fabric8:docker-maven-plugin
  dependency-version: 0.49.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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