chore: update pin for kubernetes

Author: mcp-registry-bot

servers/kubernetes/server.yaml

@@ -12,7 +12,7 @@ about:
   icon: https://avatars.githubusercontent.com/u/13629408?s=200&v=4
 source:
   project: https://github.com/Flux159/mcp-server-kubernetes
-  commit: 25c01dd171ecc07126cb95ccadca2e0ccf56bafb
+  commit: 91905a85a603a04ddca82e6c570c0c9052bf6244
 run:
   volumes:
     - "{{kubernetes.config_path}}:/home/appuser/.kube/config"