Update waitForSeleniumHubReady to accommodate Windows users

[kaylabarnett]

Update poll command within waitForSeleniumHubReady to accommodate Windows users running WDIO tests

Summary

Made an update to the poll command within waitForSeleniumHubReady to use single quotes. This change was made as using double quotes is causing parsing issues when the method is executed on Windows machines. This was found during development via one of our EPAM teams.

Additional Details

Closes #663

@cerner/terra

[mjhenkes]

@kaylabarnett thank you for the contribution!

Could you add yourself as a contributor here: https://github.com/kaylabarnett/terra-toolkit/blob/main/CONTRIBUTORS.md

[yuderekyu]

@kaylabarnett thank you for the contribution! can we get someone with a windows machine to verify that this works?

[benbcai]

@kaylabarnett thank you for the contribution! can we get someone with a windows machine to verify that this works?

It's always good to have additional verification. Another Windows consumer ran into this issue recently but I had not heard back from them whether or not it resolved their issue. I just reached out and they confirmed that this change did resolve their issue so we can also use this as verification.

Note: The Chrome not reachable error is a separate issue not related to this change.

[kaylabarnett]

@kaylabarnett thank you for the contribution! can we get someone with a windows machine to verify that this works?

It's always good to have additional verification. Another Windows consumer ran into this issue recently but I had not heard back from them whether or not it resolved their issue. I just reached out and they confirmed that this change did resolve their issue so we can also use this as verification.

Note: The Chrome not reachable error is a separate issue not related to this change.

If we need additional verification I can reach out to my EPAM team to have them verify

[benbcai]

@kaylabarnett I think we're good as far as verification goes.