chore(deps): bump com.google.cloud.tools:jib-maven-plugin (#358)

Bumps [com.google.cloud.tools:jib-maven-plugin](https://github.com/GoogleContainerTools/jib) from 3.4.4 to 3.4.6.
- [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-version: 3.4.6
  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>

Author: dependabot[bot]

samples/spring-boot/pom.xml

@@ -12,7 +12,7 @@
   <name>Kubernetes Webhooks Framework - Samples - Spring Boot</name>
 
   <properties>
-    <jib-maven-plugin.version>3.4.4</jib-maven-plugin.version>
+    <jib-maven-plugin.version>3.4.6</jib-maven-plugin.version>
     <dekorate.version>4.1.4</dekorate.version>
   </properties>