test(rrweb): Re-enable skipped test (#229)

Re-enables test that was skipped in
#172;

Author: billyvg

packages/rrweb/test/record/cross-origin-iframes.test.ts

@@ -205,8 +205,7 @@ describe('cross origin iframes', function (this: ISuite) {
       ).not.toBe(1);
     });
 
-    // This test is quite flakey in CI
-    it.skip('should replace the existing DOM nodes on iframe navigation with `isAttachIframe`', async () => {
+    it('should replace the existing DOM nodes on iframe navigation with `isAttachIframe`', async () => {
       await ctx.page.evaluate((url) => {
         const iframe = document.querySelector('iframe') as HTMLIFrameElement;
         iframe.src = `${url}/html/form.html?2`;