Update Naga to df8107b7 (2023-9-15). #7710

Job	Run time
Test WebAssembly	5m 15s
Clippy Windows x86_64	3m 10s
Test Windows x86_64	14m 10s
Clippy MacOS x86_64	3m 31s
Test Mac aarch64	1m 29s
Clippy MacOS aarch64	5m 2s
Test Linux x86_64	8m 26s
Run `cargo deny check advisories`	5m 5s
Clippy IOS aarch64	4m 17s
Clippy Linux x86_64	1m 41s
Run `cargo deny check`	4m 39s
Clippy Linux aarch64	2m 4s
Clippy cts_runner	50s
Clippy Android aarch64	1m 29s
Clippy WebAssembly	1m 49s
Doctest	52s
Clippy Emscripten	1m 24s
Format	22s
	1h 5m 35s

Provide feedback