don't set autoresizing mask on ios as that's not supported

[mockersf]

Connections
bevyengine/bevy#16363

Description
After updating to wgpu 23, Bevy crashes on iOS with fatal runtime error: Rust cannot catch foreign exceptions

This started with #6107

By adding logging between all lines of code in the get_metal_layer, it came from

wgpu/wgpu-hal/src/metal/surface.rs

Line 226 in ae6c6fb

let () = msg_send![new_layer, setAutoresizingMask: mask];

new_layer is a CAMetalLayer which is available on iOS https://developer.apple.com/documentation/quartzcore/cametallayer
but autoresizingMask is only available on macOS https://developer.apple.com/documentation/quartzcore/calayer/1410877-autoresizingmask

this PR stops setting the autoresizingMask on iOS

Testing

I tested the same fix on the 23 tag with Bevy and it works

Checklist

• Run cargo fmt.
• Run taplo format.
• Run cargo clippy. If applicable, add:
  • --target wasm32-unknown-unknown
  • --target wasm32-unknown-emscripten
• Run cargo xtask test to run tests.
• Add change to CHANGELOG.md. See simple instructions inside file.

[Wumpf]

great find, thank you!
@madsmtm do you think we need to do something else on iOS instead?

[madsmtm]

Ah damn, I think I relied on testing on Mac Catalyst a little bit too much, and then only tested previous iterations (but not the final PR) in the simulator - sorry!

@madsmtm do you think we need to do something else on iOS instead?

The details are a bit out of my cache here, but yes, we should be doing something different on iOS - but that's what #6210 is for.

In total, with #6107 and this PR, we're not worse off regarding resizing on iOS (it didn't work before). So 👍 from me.

[Wumpf]

Backported to v23 here without PR 78fbdfc