Companion PR for #6569 (#1394)

* Update wasm-builder version to 2.0.0

* Fix all crate compile

* Update cargo lock

* Bump runtime impl_version

polkadot/parachain/test-parachains/code-upgrader/src/lib.rs

@@ -34,6 +34,13 @@ static ALLOC: dlmalloc::GlobalDlmalloc = dlmalloc::GlobalDlmalloc;
 #[cfg(feature = "std")]
 include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
+#[cfg(feature = "std")]
+/// Wasm binary unwrapped. If built with `BUILD_DUMMY_WASM_BINARY`, the function panics.
+pub fn wasm_binary_unwrap() -> &'static [u8] {
+	WASM_BINARY.expect("Development wasm binary is not available. Testing is only \
+						supported with the flag disabled.")
+}
+
 #[derive(Encode, Decode, Clone, Default)]
 pub struct State {
 	/// The current code that is "active" in this chain.