[tz] Updates on Iranian Time Zone (IRDT)

Hi. Recently the Iranian parliament has decided to remove daylight saving from the Iranian time zone, eliminating the one-hour shift in the summer time. Hence, it is always going to be UTC+3:30. *This is not their final decision yet* and there is a final confirmation to be made, but I just wanted to inform you about the update to prepare possible modifications. I'm a software engineer and if we have the update on *tzdata* package as soon as possible, the software companies can adjust themselves accordingly. Please read these official news: https://www.isna.ir/news/1400122419045/ https://www.yjc.news/00Xw0k Regards, Ali Tofighi