✅(frontend) fix mock restore

A bug with resetAllMocks has been fixed in jest in
jestjs/jest#13866
It seems like we were relying on it.

src/frontend/packages/lib_components/src/data/sideEffects/uploadFile/index.spec.ts

@@ -21,12 +21,10 @@ describe('sideEffects/uploadFile', () => {
   };
   const mockXHRClass = jest.fn().mockImplementation(() => mockXHRInstance);
 
-  beforeAll(() => {
+  beforeEach(() => {
     (window as any).XMLHttpRequest = mockXHRClass;
   });
 
-  afterEach(jest.restoreAllMocks);
-
   it('makes an xhr POST to perform the upload, notifies of progress and resolves', async () => {
     // Create the promise but don't await it so we can simulate the ongoing request
     const response = uploadFile(