iPhone SE simulator no longer available by default in Xcode 16.4

[freakboy3742]

Bug report

Bug description:

The iOS testbed attempts to select the "iPhone SE (3rd generation)" simulator as a default option if no simulator is explicitly specified.

However, with the release of the iPhone 16e, Xcode 16.3 no longer ships with an iPhone SE image by default. This causes the make testios target to fail, as well as any testbed usage that doesn't explicitly specify a simulator.

CPython versions tested on:

3.13

Operating systems tested on:

Other

Linked PRs

• gh-133131: Discover an appropriate iOS simulator rather than hard-coding iPhone SE 3rd gen #133132
• [3.13] gh-133131: Discover an appropriate iOS simulator rather than hard-coding iPhone SE 3rd gen (GH-133132) #133173