Fixes: Regard int() as int32() by default, which should be a coding standard (#7155)

https://github.com/XTLS/Xray-core/pull/7155#issuecomment-6208455069

Fixes https://github.com/XTLS/Xray-core/pull/7148#issuecomment-6173633056

---------

Co-authored-by: Denis Orlov <freshcrowd@gmail.com>
Co-authored-by: Milomilo777 <117558067+Milomilo777@users.noreply.github.com>

transport/internet/xdrive/drive.go

@@ -153,7 +153,7 @@ func jitter(backoff time.Duration) time.Duration {
 	if half <= 0 {
 		return backoff
 	}
-	return half + time.Duration(dice.Roll(int(half)))
+	return half + time.Duration(dice.RollInt63n(int64(half)))
 }
 
 func rateLimited(payload []byte) bool {