fix(nodejs): add a network timeout in page loading to fix hanging issue

[shunguoy]

• Automated tool bug

This PR is related to the following issue(s):

Testing reference:

• see the HTML test case in [BUG]: Timeout on pages with a lazy loaded iframe #1892
  Test instruction: first build and install the checker, then run the following command from the command line:
  % npx achecker --outputFolder ~—/Downloads
  With the fix, an accessibility result should be outputted, otherwise, an error message "Navigation timeout of 30000 ms exceeded".

I have conducted the following for this PR:

• I validated this code in Chrome and FF
• I validated this fix in my local env
• I provided details for testing
• This PR has been reviewed and is ready for test
• I understand that the title of this PR will be used for the next release notes.