ios: investigate "all available probe services failed"

[bassosimone]

From #1324 (comment). Very few details so far. It may or may not be an issue related to the Golang reordering the certificates list. More information is probably needed.

This is what we know so far:

We have just received today a report that there are issues also for iOS. This problem on iOS needs more investigation. It may be worth figuring out whether this device is arm or arm64. Maybe, if it's arm, it's reasonable that there is no AES?

Update: it's "Apple A14 Bionic ARM 64", so we need to figure out whether the processor flags are missing also on this case or whether this is an unrelated kind of problem. (The solution at ooni/probe-cli#285 is good anyway for this use case.)

[hellais]

It's probably worth checking sentry logs for this too.