Update linter for golang v1.25 compatibility

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

internal/app/wwctl/node/edit/main.go

@@ -44,7 +44,7 @@ func CobraRunE(cmd *cobra.Command, args []string) error {
 	if tempErr != nil {
 		return fmt.Errorf("could not create temp file: %s", tempErr)
 	}
-	defer os.Remove(tempFile.Name())
+	defer func() { _ = os.Remove(tempFile.Name()) }()
 
 	if !NoHeader {
 		yamlTemplate := node.ConfToYaml(node.Node{}, nil)