Bump kubernetes.client.version from 6.4.1 to 6.8.1

Bumps `kubernetes.client.version` from 6.4.1 to 6.8.1.

Updates `io.fabric8:kubernetes-client` from 6.4.1 to 6.8.1
- [Release notes](https://github.com/fabric8io/kubernetes-client/releases)
- [Changelog](https://github.com/fabric8io/kubernetes-client/blob/main/CHANGELOG.md)
- [Commits](fabric8io/kubernetes-client@v6.4.1...v6.8.1)

Updates `io.fabric8:kubernetes-model-common` from 6.4.1 to 6.8.1

Updates `io.fabric8:knative-client` from 6.4.1 to 6.8.1

Updates `io.fabric8:kubernetes-server-mock` from 6.4.1 to 6.8.1

---
updated-dependencies:
- dependency-name: io.fabric8:kubernetes-client
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.fabric8:kubernetes-model-common
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.fabric8:knative-client
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.fabric8:kubernetes-server-mock
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -57,7 +57,7 @@
 		<commons-text.version>1.10.0</commons-text.version>
 		<citrus.kafka.version>4.0.0-M2</citrus.kafka.version>
 		<kafka.clients.version>3.5.1</kafka.clients.version>
-		<kubernetes.client.version>6.4.1</kubernetes.client.version>
+		<kubernetes.client.version>6.8.1</kubernetes.client.version>
 	</properties>
 
 	<distributionManagement>