Update to `wgpu 0.20`, fixing crashes with some linux setups #10867

Job	Run time
cpp-paths-filter	3s
docs-paths-filter	5s
python-paths-filter	3s
rust-paths-filter	5s
web-paths-filter	4s
Checks / Test Python Docs	39s
Checks / Rerun lints	31s
Checks / Check if running codegen would produce any changes	1m 26s
Checks / Lint markdown	22s
Checks / Misc formatting	22s
Checks / Spell Check	5s
Checks / Check links	26s
Update PR Body / Update PR body	22s
Python Checks	0s
Build rerun_js / Build rerun_js	2m 53s
C++ tests	0s
Build web viewer / Build web viewer	2m 49s
Deploy Landing Preview	0s
Rust Checks / Rust lints (fmt, check, clippy, tests, doc)	12m 16s
Rust Checks / Test on macOS and Windows	0s
Minimum CLI Build / Set Config (linux-x64)	2s
Minimum CLI Build / Build rerun-cli (ubuntu-latest-16-cores)	4m 15s
Upload Web / Upload web build to google cloud (wasm32 + wasm-bindgen)	7s
Save PR Summary / Create HTML summary for PR	34s
Minimum Wheel Build / Set Config (linux-x64)	3s
Minimum Wheel Build / Build Wheels (ubuntu-latest-16-cores)	1m 40s
Minimum Wheel Test / Set Config (linux-x64)	3s
Minimum Wheel Test / Test Wheels (ubuntu-latest-16-cores)	2m 25s
	31m 40s

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