fix: improve code format (#2665)

* feat: replace io/ioutils pacakage with io/os package

* fix: add missing error handling

util/path.go

@@ -16,7 +16,6 @@ package util
 
 import (
 	"fmt"
-	"io/ioutil"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -40,7 +39,7 @@ func GetPath(path string) string {
 func ListFiles(path string) []string {
 	res := []string{}
 
-	files, err := ioutil.ReadDir(path)
+	files, err := os.ReadDir(path)
 	if err != nil {
 		panic(err)
 	}