chore(deps): update wgpu requirement from 0.19.1 to 0.20.0

Updates the requirements on [wgpu](https://github.com/gfx-rs/wgpu) to permit the latest version.
- [Release notes](https://github.com/gfx-rs/wgpu/releases)
- [Changelog](https://github.com/gfx-rs/wgpu/blob/trunk/CHANGELOG.md)
- [Commits](gfx-rs/wgpu@v0.19.1...v0.20.0)

---
updated-dependencies:
- dependency-name: wgpu
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Cargo.toml

@@ -154,7 +154,7 @@ rayon = { version = "1.8", optional = true }
 serde = "1.0"
 static_assertions = "1.1"
 typenum = "1.17.0"
-wgpu = "0.19.1"
+wgpu = "0.20.0"
 
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]