reject binding type multisampled when on a float filterable sample type

[mockersf]

Checklist

• Run cargo clippy.
• Run RUSTFLAGS=--cfg=web_sys_unstable_apis cargo clippy --target wasm32-unknown-unknown if applicable.
• Add change to CHANGELOG.md. See simple instructions inside file.

Connections
Link to the issues addressed by this PR, or dependent PRs in other repositories

Description

This binding is failing in webgpu (in Chrome):

BindingType::Texture {
  multisampled: true,
  sample_type: TextureSampleType::Float { filterable: true },
  view_dimension: TextureViewDimension::D2,
}

with the following error:

Sample type TextureSampleType::Float for multisampled texture bindings was TextureSampleType::Float.
 - While validating entries[17]
 - While validating [BindGroupLayoutDescriptor "mesh_view_layout_multisampled"]
 - While calling [Device].CreateBindGroupLayout([BindGroupLayoutDescriptor "mesh_view_layout_multisampled"]).

But working in native (metal)

This PR makes it error out in native too with the following error:

wgpu error: Validation Error

Caused by:
    In Device::create_bind_group_layout
      note: label = `mesh_view_layout_multisampled`
    Binding 17 entry is invalid
    Binding of TextureSampleType::Float can't be filterable when multisampled

Testing

Tested with bindings erroring and not erroring in webgpu and in native (metal)

[cwfitzgerald]

Thanks!