Update GEOS version to 3.6.5 in workflows
Update GEOS version to 3.6.5 in workflows

This update is required because GEOS 3.3.3 seems to be a bit difficult
to build under modern Windows/MSVC due to the use of non-std min/max
in different parts of the source code.

guziy/basemap,matplotlib/basemap,matplotlib/basemap,guziy/basemap