chore: update to use WalkDir

main.go

@@ -30,7 +30,7 @@ func main() {
 
 	switch flag.Arg(0) {
 	case "normalize":
-		err := filepath.Walk(*path, normalize)
+		err := filepath.WalkDir(*path, normalize)
 		if err != nil {
 			panic(err)
 		}
@@ -91,10 +91,11 @@ func removeSuffix(suffix string) filepath.WalkFunc {
 	}
 }
 
-func normalize(p string, f os.FileInfo, err error) error {
+func normalize(p string, f os.DirEntry, err error) error {
 	if f == nil {
 		return nil
 	}
+
 	filename := f.Name()
 	if skip, err := skipDir(filename); skip {
 		return err