test: resolve path of embedtest binary correctly

PR-URL: #50276
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>

Author: zcbenz

test/embedding/test-embedding.js

@@ -14,12 +14,11 @@ tmpdir.refresh();
 common.allowGlobals(global.require);
 common.allowGlobals(global.embedVars);
 
-function resolveBuiltBinary(bin) {
-  let binary = `out/${common.buildType}/${bin}`;
+function resolveBuiltBinary(binary) {
   if (common.isWindows) {
     binary += '.exe';
   }
-  return path.resolve(__dirname, '..', '..', binary);
+  return path.join(path.dirname(process.execPath), binary);
 }
 
 const binary = resolveBuiltBinary('embedtest');