updated dependencies and go

langext/base62.go

@@ -18,18 +18,18 @@ func RandBase62(rlen int) string {
 
 	randMax := big.NewInt(math.MaxInt64)
 
-	r := ""
+	var r strings.Builder
 
-	for i := 0; i < rlen; i++ {
+	for range rlen {
 		v, err := rand.Int(rand.Reader, randMax)
 		if err != nil {
 			panic(err)
 		}
 
-		r += string(base62CharacterSet[v.Mod(v, bi52).Int64()])
+		r.WriteString(string(base62CharacterSet[v.Mod(v, bi52).Int64()]))
 	}
 
-	return r
+	return r.String()
 }
 
 func EncodeBase62(num uint64) string {