feat(deps): update rand

[CosminPerRam]

EDIT: This PR originally went to update getrandom too, but that includes a wasm breaking change and can be done in a major version only.

Updates rand from 0.8 to 0.9 and getrandom from 0.2 to 0.3.

The rand update included some deprecations, I've replaced them.
The getrandom update renamed the js feature to wasm_js.

I'd like this to be merged as I currently use other crates that are on the newer versions (and this one adds duplicated deps).

[CosminPerRam]

Hopefully I've correctly updated Cargo-1.65.lock, if not, please mention to revert.

[CosminPerRam]

@ramosbugs bump, any blockers for this to be merged?

[ramosbugs]

does this require every WASM build to set rustflags = ['--cfg', 'getrandom_backend="wasm_js"']? if so, I think this is a breaking change that will have to wait for the next major release

[CosminPerRam]

Unfortunately yes, I'll remove the getrandom dependency update from this PR for now.

[CosminPerRam]

Apparently neither can rand be updated to 0.9 as it depends on rand_core 0.9 which itself depends on getrandom 0.3, which requires the flags, closing this for now.

[bim9262]

Does adding the following to Cargo.toml resolve the issue?

[target.wasm32-unknown-unknown]
# The dependency getrandom needs this flag set, but only when the target is wasm32-unknown-unknown.
# https://docs.rs/getrandom/latest/getrandom/#opt-in-backends
rustflags = ['--cfg', 'getrandom_backend="wasm_js"']