Enable wasmtime caching for PVF (companion for #8057) (#2387)

* Wasm caching

* Fix compilation errors

* Rename `cache_path` to `cache_base_path`

* "Update Substrate"

* Fix check-web-wasm build

Co-authored-by: parity-processbot <>

polkadot/parachain/test-parachains/tests/lib.rs

@@ -25,6 +25,6 @@ use parachain::wasm_executor::run_worker;
 #[test]
 fn validation_worker() {
 	if let Some(id) = std::env::args().find(|a| a.starts_with("/shmem_rs_")) {
-		run_worker(&id).unwrap()
+		run_worker(&id, None).unwrap()
 	}
 }