Update to Rust 1.76, and improve CI #201

Job	Run time
Test Suite	5m 5s
Check wasm32	1m 11s
Check	2m 3s
build (macos-latest, aarch64-apple-darwin)	2m 40s
Clippy	2m 6s
build (macos-latest, x86_64-apple-darwin)	6m 20s
Rustfmt	21s
build (ubuntu-latest, arm-unknown-linux-musleabihf)	3m 57s
trunk	1m 36s
build (ubuntu-latest, armv7-unknown-linux-musleabihf)	3m 54s
build (ubuntu-latest, x86_64-unknown-linux-musl)	4m 5s
build (windows-latest, x86_64-pc-windows-msvc, .exe)	3m 55s
	37m 13s

Provide feedback