Chore: resolve dynamic import warnings from pdfjs, again (#9924)

src-ui/setup-jest.ts

@@ -121,19 +121,4 @@ HTMLCanvasElement.prototype.getContext = <
   typeof HTMLCanvasElement.prototype.getContext
 >jest.fn()
 
-// pdfjs
-jest.mock('pdfjs-dist', () => ({
-  getDocument: jest.fn(() => ({
-    promise: Promise.resolve({ numPages: 3 }),
-  })),
-  GlobalWorkerOptions: { workerSrc: '' },
-  VerbosityLevel: { ERRORS: 0 },
-  globalThis: {
-    pdfjsLib: {
-      GlobalWorkerOptions: {
-        workerSrc: '',
-      },
-    },
-  },
-}))
-jest.mock('pdfjs-dist/web/pdf_viewer', () => ({}))
+jest.mock('pdfjs-dist')