Fix getTeamAndUserFromURL function

[steakfest]

The github api started returning a different url format, this handles both the old and new string, just in case they change it back.

[steakfest]

This is a possible alternative to https://github.com/terraform-providers/terraform-provider-github/pull/325

This seems like a less intrusive way of changing the behavior of the provider. Keeping the original intent of the code and adjusting for the change, safely.

[MichaelMarieJulie]

Thanks you for this fix, it seems working perfectly
May we know when it can be released as it’s really impactful for everybody ?

[meabed]

Thanks for the fix! how would you override this directly until the fix is released official ?

[TheKevJames]

@meabed see the "quick fix" here: https://github.com/terraform-providers/terraform-provider-github/pull/325#issuecomment-575674622 (note that you'll need to change the github invocation if you'd prefer this fix over the other one). You may also need to roll back your state file: https://github.com/terraform-providers/terraform-provider-github/pull/325#issuecomment-575751214