Bump com.google.cloud.tools:jib-maven-plugin from 3.3.2 to 3.4.0

Bumps [com.google.cloud.tools:jib-maven-plugin](https://github.com/GoogleContainerTools/jib) from 3.3.2 to 3.4.0.
- [Release notes](https://github.com/GoogleContainerTools/jib/releases)
- [Commits](https://github.com/GoogleContainerTools/jib/commits)

---
updated-dependencies:
- dependency-name: com.google.cloud.tools:jib-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -238,7 +238,7 @@
  <plugin>
  <groupId>com.google.cloud.tools</groupId>
  <artifactId>jib-maven-plugin</artifactId>
- <version>3.3.2</version>
+ <version>3.4.0</version>
  <configuration>
  <to>courier</to>
  <from>