Make github actions run webassembly tests

[LLFourn]

Many of the tests are dual declared as wasm tests as well with:

secp256kfun/secp256kfun/src/macros.rs

Lines 216 to 226 in 6dd7332

	macro_rules! test_plus_wasm {
	($($test:item)*) => {
	#[cfg(target_arch = "wasm32")]
	use wasm_bindgen_test::*;
	$(
	#[cfg_attr(not(target_arch = "wasm32"), test)]
	#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
	$test
	)*
	};
	}

But the tests don't run on github actions.