opencv.js: QR code test failure

[opencv-alalek]

https://pullrequest.opencv.org/buildbot/builders/4_x_javascript-emscripten-lin64/builds/100401

relates #23264

│ QR code detect and decode │ Died on test #1: Cannot construct QRCodeDetector due to unbound types: N2cv18QRCodeDetectorBaseE                                    │ fail   │
│                           │     at Object.global.test.QUnit.test (/build/4_x_javascript-emscripten-lin64/build/bin/node_modules/node-qunit/lib/child.js:132:17) │        │
│                           │     at Object.<anonymous> (/build/4_x_javascript-emscripten-lin64/build/bin/test_objdetect.js:162:7)                                │        │
│                           │     at Module._compile (module.js:653:30)                                                                                           │        │
│                           │     at Object.Module._extensions..js (module.js:664:10)                                                                             │        │
│                           │     at Module.load (module.js:566:32)                                                                                               │        │
│                           │     at tryModuleLoad (module.js:506:12)                                                                                             │        │
│                           │     at Function.Module._load (module.js:498:3)