Update Cargo.toml for getrandom on wasm

[Its-Just-Nans]

fix

194 | /                 compile_error!(concat!(
195 | |                     "The wasm32-unknown-unknown targets are not supported by default; \
196 | |                     you may need to enable the \"wasm_js\" configuration flag. Note \
197 | |                     that enabling the `wasm_js` feature flag alone is insufficient. \
198 | |                     For more information see: \
199 | |                     https://docs.rs/getrandom/", env!("CARGO_PKG_VERSION"), "/#webassembly-support"
200 | |                 ));