Linter hint about {{ stdlib("c") }} variable is incorrect for noarch packages

[BastianZim]

Solution to issue cannot be found in the documentation.

• I checked the documentation.

Issue

Platform-specific noarch packages that use __osx receive a hint that they should depend on {{ stdlib("c") }} but they are noarch and do not require it.

Example: conda-forge/poetry-feedstock#99 (comment)
Code:

conda-smithy/conda_smithy/lint_recipe.py

Line 885 in f892a5b

if any(req.startswith("__osx") for req in run_reqs + constraints):

Background: conda-forge/conda-forge.github.io#2102 (comment)

[BastianZim]

CC @jakirkham and @h-vetinari