Try to retry tests if connection err for download

[attiasas]

• [x] All tests passed. If this feature is not already covered by the tests, I added new tests.

• [x] I used npm run format for formatting the code before submitting the pull request.

  to avoid the following error in running tests:

solution base on: https://github.com/microsoft/vscode-test/issues/153 only works for node 16+