CI: Linux py37_locale failing with pyarrow 0.17.1
https://dev.azure.com/pandas-dev/pandas/_build/results?buildId=35751&view=logs&j=a3a13ea8-7cf0-5bdb-71bb-6ac8830ae35c&t=add65f64-6c25-5783-8fd6-d9aa1b63d9d4