Adapt test worker to profile flag (#2450)

closes #2194 

cc @mrcnski

---------

Co-authored-by: Bastian Köcher <git@kchr.de>

polkadot/node/core/pvf/src/testing.rs

@@ -59,21 +59,22 @@ pub fn validate_candidate(
 ///
 /// NOTE: This should only be called in dev code (tests, benchmarks) as it relies on the relative
 /// paths of the built workers.
-pub fn build_workers_and_get_paths(is_bench: bool) -> (PathBuf, PathBuf) {
+pub fn build_workers_and_get_paths() -> (PathBuf, PathBuf) {
 	// Only needs to be called once for the current process.
 	static WORKER_PATHS: OnceLock<Mutex<(PathBuf, PathBuf)>> = OnceLock::new();
 
-	fn build_workers(is_bench: bool) {
+	fn build_workers() {
 		let mut build_args = vec![
 			"build",
 			"--package=polkadot",
 			"--bin=polkadot-prepare-worker",
 			"--bin=polkadot-execute-worker",
 		];
-		if is_bench {
-			// Benches require --release. Regular tests are debug (no flag needed).
+
+		if cfg!(build_type = "release") {
 			build_args.push("--release");
 		}
+
 		let mut cargo = std::process::Command::new("cargo");
 		let cmd = cargo
 			// wasm runtime not needed
@@ -117,7 +118,7 @@ pub fn build_workers_and_get_paths(is_bench: bool) -> (PathBuf, PathBuf) {
 			}
 		}
 
-		build_workers(is_bench);
+		build_workers();
 
 		Mutex::new((prepare_worker_path, execute_worker_path))
 	});