Earlier quoted context omitted.
Gitlab is hosted on google cloud, and fronted by cloudflare... those IP restrictions apply to google cloud, AWS, Azure and Oracle Cloud. (and Cloudflare since that's a US company also)
To my knowledge, services hosted on AWS are not blocked in Iran. Also, if that were the case, literally have the internet would cease to function w/o VPN, which should give pause to those who would shrug off such a policy.
Your knowledge is blatantly wrong, despite multiple people telling you otherwise:
https://reclaimthenet.org/amazon-aws-iran-proxies-vpn-sancti...