As its release notes states:

Public release of kubernetes-client 5.4.1.

Version 5.x and later have breaking API changes over 4.x so make sure to update as well plugins using this library at the same time.

However, the kubernetes-plugin has bumped Jenkins version 

https://github.com/jenkinsci/kubernetes-plugin/blob/kubernetes-1.28.0/pom.xml#L50

while  kubernetes-client-api-plugin didn't bump Jenkins version

https://github.com/jenkinsci/kubernetes-client-api-plugin/blob/kubernetes-client-api-5.4.1/pom.xml#L18

So on a Jenkins version Jenkins 2.235.5,   kubernetes-client-api-plugin could be upgraded to 

5.4.1 while kubernetes-plugin stays on 1.27.x, thus break the functionality.

kubernetes-client-api-plugin should also bump to Jenkins 2.263