Add support for bgra8unorm-storage

[nical]

Checklist

• Run cargo clippy.
• Add change to CHANGELOG.md. See simple instructions inside file.

Connections

This is a continuation of the work that started in #3634

Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1829895

Description

Resolves #3359

Testing

There is a basic test in here.
The CTS also has some coverage for this although firefox hasn't updated to a version of the CTS that contains the test (but will soon).

[nical]

Currently blocked on gfx-rs/naga#2550

[teoxoy]

A few remaining things.

[teoxoy]

Looks good!

[teoxoy]

@nical the feature is missing from

wgpu/deno_webgpu/01_webgpu.js

Line 5166 in 6c8ccde

was brought up by @crowlKats in #3634 (comment)

[teoxoy]

I thought changes to deno require approval from @gfx-rs/deno but it seems my review is enough to land this. I remember this wasn't the case previously to adding the wgpu team to the codeowners file (#4162).

cc @cwfitzgerald

[crowlKats]

good catch, apologies for not having reviewed this.
Also, I believe previously PRs could be merged without my approval, its just that I was more attentive and actually left approvals or required changes relatively quickly

[nical]

Alright, this should be ready to land (note: I disabled the feature with vulkan on mac, because of the odd side effect causing the occlusion_query test to fail, I can't spend the time investigating that in the foreseeable future).

[teoxoy]

I reran the mac job that was failing https://github.com/gfx-rs/wgpu/actions/runs/6496021322/job/17672724374 and it ran successfully. I think it was just flakey (#4235 (comment)).

[nical]

Ok let's try one last time

[nical]

Ok it passed, let's merge.

[cwfitzgerald]

I thought changes to deno require approval from https://github.com/orgs/gfx-rs/teams/deno but it seems my review is enough to land this. I remember this wasn't the case previously to adding the wgpu team to the codeowners file

@teoxoy wgpu has never required any reviews at all to land things, just CI passing - this is a policy I've kept to allow good-faith quick fixes without needing the delay of getting other people involved.