Update windows compilers

[h-vetinari]

Hey all

This feedstock is still using VS2017 as the compiler on windows

ensmallen-feedstock/recipe/conda_build_config.yaml

Lines 1 to 9 in 86a11d2

	c_compiler: # [win]
	- vs2017 # [win]
	- vs2017 # [win]
	- vs2017 # [win]
	cxx_compiler: # [win]
	- vs2017 # [win]
	- vs2017 # [win]
	- vs2017 # [win]

apparently unchanged since the introduction of windows support; in the meantime, conda-forge has moved on to vs2019 as the default compiler a while ago already.

If you think you need vs2017, please let us know why (generally vs2019 and vs2022 should be fully compatible), otherwise please just remove those pins and rely on the defaults (in this case, conda_build_config.yaml could be removed in its entirety).

[rcurtin]

Thanks, I have no idea why those versions in particular are specified. I tried removing them in #44; I'll work to get that merged and then this will be resolved. 👍

[rcurtin]

Ok, merged an updated build. I think this is fixed; @h-vetinari let me know if anything else needs to be done. 👍