chore: update halo2curves to v0.4.0 #784

Job	Run time
Bitrot check	4m 56s
Intra-doc links	4m 15s
Rustfmt	14s
Build target wasm32-unknown-unknown	4m 22s
Build target wasm32-wasi	4m 20s
Test on ubuntu-latest with basic features	4m 46s
Test on windows-latest with basic features	4m 49s
Test on macOS-latest with basic features	4m 50s
Test on ubuntu-latest with all features	4m 54s
Test on windows-latest with all features	4m 53s
Test on macOS-latest with all features	4m 47s
	47m 6s

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