sdk: fix breaking change in getrandom wasm build

Author: tzemanovic

Cargo.lock

@@ -157,6 +157,7 @@ flate2 = "1.0"
 flume = "0.11"
 fs_extra = "1.2"
 futures = "0.3"
+getrandom = "0.3"
 git2 = { version = "0.20", default-features = false }
 hyper = { version = "1.6", features = ["full"] }
 ibc = { version = "0.57.0", features = ["serde"] }

Cargo.toml

@@ -119,7 +119,7 @@ check-crates:
 	cargo +$(nightly) check -Z unstable-options --tests $(all-crates) && \
 		make -C $(wasms) check && \
 		make -C $(wasms_for_tests) check && \
-		cargo check --package namada_sdk --target wasm32-unknown-unknown --no-default-features && \
+		RUSTFLAGS='--cfg getrandom_backend="wasm_js"' cargo check --package namada_sdk --target wasm32-unknown-unknown --no-default-features && \
 		cargo check --package namada_sdk --all-features
 
 clippy-wasm = $(cargo) +$(nightly) clippy --manifest-path $(wasm)/Cargo.toml --all-targets -- -D warnings

Makefile

@@ -145,6 +145,7 @@ tokio = { workspace = true, features = ["full"] }
 
 [target.'cfg(target_family = "wasm")'.dependencies]
 tokio = { workspace = true, default-features = false, features = ["sync"] }
+getrandom = { workspace = true, features = ["wasm_js"] }
 
 [dev-dependencies]
 namada_account = { path = "../account", features = ["testing"] }