726: Bump wgpu-core and update texture_view_drop call r=kvark a=mkeeter
This PR updates to the latest `wgpu-core` commit ([wgpu #1163](https://github.com/gfx-rs/wgpu/pull/1163)), and is the counterpart to [wgpu-native #66](https://github.com/gfx-rs/wgpu-native/pull/66).
I'm using `wait = false` in the `texture_view_drop` call to match `buffer_drop` and `texture_drop` elsewhere `backend/direct.rs`, though I don't quite understand the implications 😅
Co-authored-by: Matt Keeter <matt.j.keeter@gmail.com>