test: add signal check to test-esm-cjs-main

PR-URL: #25073
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Anto Aravinth <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Daijiro Wachi <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>

Author: Trott

test/es-module/test-esm-cjs-main.js

@@ -21,7 +21,8 @@ child.stdout.on('data', (data) => {
   assert.strictEqual(data.toString(), 'executed\n');
   validatedExecution = true;
 });
-child.on('close', common.mustCall((code, stdout) => {
+child.on('close', common.mustCall((code, signal) => {
   assert.strictEqual(validatedExecution, true);
   assert.strictEqual(code, 0);
+  assert.strictEqual(signal, null);
 }));