ci: optimize wasm size release build

Author: bdeneux

Makefile.toml

@@ -87,6 +87,7 @@ rustup target add wasm32-unknown-unknown
 args = ["build", "--release", "--target", "wasm32-unknown-unknown"]
 command = "cargo"
 dependencies = ["install_wasm"]
+env = { RUSTFLAGS = "-C link-arg=-s" }
 
 [tasks.check_contracts]
 dependencies = ["wasm"]