Replaced deprecated ioutil.ReadDir() with os.ReadDir() + os.Stat() in filesize.go.

pkg/utils/filesize.go

@@ -1,7 +1,7 @@
 package utils
 
 import (
-	"io/ioutil"
+	"os"
 	"strconv"
 	"strings"
 
@@ -29,13 +29,17 @@ func ConvertFileSize(size int64) (float64, string, string) {
 }
 
 func DirectorySize(path string) (dirSz int64, err error) {
-	dir, err := ioutil.ReadDir(path)
+	dir, err := os.ReadDir(path)
 	if err != nil {
 		return 0, errors.Wrapf(err, "failed to compute %s directory size", path)
 	}
 
 	for _, entry := range dir {
-		dirSz += entry.Size()
+		file, err := os.Stat(entry.Name())
+		if err != nil {
+			return 0, errors.Wrapf(err, "failed to stat a file %s", entry.Name())
+		}
+		dirSz += file.Size()
 	}
 
 	return dirSz, nil