Bump wasip3 to v0.4

[newpavlov]

No description provided.

[newpavlov]

wasip3 v0.4 requires Rust 1.87. Technically, we should bump rust-version for getrandom as well, but I guess it's fine to skip it in this case.

Unfortunately, this setting may complicate MSRV testing since we could pull dependencies into Cargo.lock which require a higher Rust version. I think the right way to handle this would be to execute cargo update in each MSRV job.

[dhardy]

Is it not sufficient to use cargo update --ignore-rust-version only in the relevant tests?

[newpavlov]

Yes, it could work as well. But I think we should commit latest dependency versions into Cargo.lock and test with them by default, not MSRV-compatible ones. Plus, we have more non-MSRV jobs.

[newpavlov]

See

getrandom/.github/workflows/tests.yml

Lines 373 to 376 in b229df2

	- name: Generate MSRV-compatible Cargo.lock
	env:
	CARGO_RESOLVER_INCOMPATIBLE_RUST_VERSIONS: "fallback"
	run: cargo update