[build] Update kubelet version to v1.32.8+b5229e8

This commit was generated using hack/update_submodules.sh

Author: jrvaldes

Makefile

@@ -7,7 +7,7 @@ WMCO_VERSION ?= 10.19.1
 
 # *_GIT_VERSION are the k8s versions. Any update to the build line could potentially require an update to the sed
 # command in generate_k8s_version_commit() in hack/update_submodules.sh
-KUBELET_GIT_VERSION=v1.32.6+38c60a5
+KUBELET_GIT_VERSION=v1.32.8+b5229e8
 CONTAINERD_GIT_VERSION=v1.7.26
 # CHANNELS define the bundle channels used in the bundle.
 # Add a new line here if you would like to change its default config. (E.g CHANNELS = "preview,fast,stable")