Build: Fix iOS 12 by switching from iPhone 8 to iPhone XS

> [BROWSERSTACK_DEVICE_DEPRECATION_WARNING] This is to inform you that we have
> decided to deprecate iPhone 8-12, effective 5 November 2024. For more details,
> please check our device deprecation policy FAQ
> https://www.browserstack.com/question/790
> https://www.browserstack.com/support/faq/automate/basics-automate/device-deprecation-policy
> . If you are still using this device, we strongly recommend you update your
> test script or risk your tests failing. For the current list of supported
> devices on BrowserStack, please check here
> https://www.browserstack.com/list-of-browsers-and-platforms/automate

build/browserstack-full.json

@@ -46,7 +46,7 @@
       "real_mobile": true
     },
     {
-      "device": "iPhone 8",
+      "device": "iPhone XS",
       "real_mobile": true,
       "os": "ios",
       "os_version": "12"