Update CDI dependency to v0.8.1.

Signed-off-by: Krisztian Litkey <krisztian.litkey@intel.com>

vendor/modules.txt

@@ -881,7 +881,7 @@ sigs.k8s.io/structured-merge-diff/v4/value
 ## explicit; go 1.12
 sigs.k8s.io/yaml
 sigs.k8s.io/yaml/goyaml.v2
-# tags.cncf.io/container-device-interface v0.8.0
+# tags.cncf.io/container-device-interface v0.8.1
 ## explicit; go 1.20
 tags.cncf.io/container-device-interface/internal/validation
 tags.cncf.io/container-device-interface/internal/validation/k8s

vendor/tags.cncf.io/container-device-interface/pkg/cdi/cache.go

@@ -564,6 +564,14 @@ func (w *watch) update(dirErrors map[string]error, removed ...string) bool {
 		update bool
 	)
 
+	// If we failed to create an fsnotify.Watcher we have a nil watcher here
+	// (but with autoRefresh left on). One known case when this can happen is
+	// if we have too many open files. In that case we always return true and
+	// force a refresh.
+	if w.watcher == nil {
+		return true
+	}
+
 	for dir, ok = range w.tracked {
 		if ok {
 			continue