fix: get DRA plugin name from the resource handle

DRA manager used controller plugin name as a Kubelet plugin name.
This worked only for setups with the same controller and plugin
names and one Kubelet plugin.

For the setup with multiple Kubelet plugins it breaks with the error
`Failed to prepare dynamic resources" err="failed to get DRA Plugin
client for plugin name <controller plugin name>: plugin name
<controller plugin name> not found in the list of registered DRA
plugins`

Getting Kubelet plugin name from the resource handle should fix
this issue.

pkg/kubelet/cm/dra/manager.go

@@ -225,7 +225,7 @@ func (m *ManagerImpl) PrepareResources(pod *v1.Pod) error {
 			for _, resourceHandle := range claimInfo.ResourceHandles {
 				// If no DriverName is provided in the resourceHandle, we
 				// use the DriverName from the status
-				pluginName := claimInfo.DriverName
+				pluginName := resourceHandle.DriverName
 				if pluginName == "" {
 					pluginName = claimInfo.DriverName
 				}