CI: Update error message for np_dev
https://dev.azure.com/pandas-dev/pandas/_build/results?buildId=44153&view=logs&jobId=eab14f69-13b6-5db7-daeb-7b778629410b&j=eab14f69-13b6-5db7-daeb-7b778629410b&t=ce687173-08c6-5301-838d-71b2dda24510
thanks @dsaxton @meeseeksdev backport 1.1.x