Upgrade to Fabric8 7.3.1

This is necessary due to the use of Jackson 2.19.x in Spring Boot 3.5.0.

Fixes spring-cloud#1923

Author: ryanjbaxter

spring-cloud-kubernetes-dependencies/pom.xml

@@ -32,7 +32,7 @@
 	<name>Spring Cloud Kubernetes :: Dependencies</name>
 	<description>Spring Cloud Kubernetes Dependencies</description>
 	<properties>
-		<kubernetes-fabric8-client.version>6.13.5</kubernetes-fabric8-client.version>
+		<kubernetes-fabric8-client.version>7.3.1</kubernetes-fabric8-client.version>
 		<kubernetes-native-client.version>19.0.2</kubernetes-native-client.version>
 		<wiremock.version>3.9.2</wiremock.version>
 	</properties>