Update windows compilers

[h-vetinari]

Hey all

This feedstock is directly specifying vs2017_win-64 as a dependency,

pycppad-feedstock/recipe/meta.yaml

Lines 16 to 20 in 6ddd983

	requirements:
	build:
	- {{ compiler('cxx') }}
	- vs2017_win-64 # [win64]
	- vs2017_win-32 # [win32]

but should just rely on the {{ compiler('c') }} function to provide the correct compilers on windows. In particular, conda-forge has moved on to vs2019 as the default compiler a while ago already, and doesn't support 32-bit builds anymore.

If you think you need vs2017, please let us know why (generally vs2019 and vs2022 should be fully compatible). If it's really necessary, please use the dedicated mechanism in conda_build_config.yaml for that, i.e.

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

as opposed to specifying it in meta.yaml directly.

[jcarpent]

@jorisv Could you handle it too?