ENH: extend free_disk_space to windows?

[h-vetinari]

I'm running into

OSError: [Errno 28] No space left on device

on a windows build, however, free_disk_space is documented to only work on linux:

conda-smithy/conda_smithy/schema.py

Lines 139 to 149 in 0361df5

	free_disk_space: Optional[
	Union[bool, Nullable, List[Literal["apt", "cache", "docker"]]]
	] = Field(
	default=False,
	description=cleandoc(
	"""
	Free up disk space before running the Docker container for building on Linux.
	The following components can be cleaned up: `apt`, `cache`, `docker`.
	When set to `true`, only `apt` and `cache` are cleaned up.
	Set it to the full list to clean up all components.
	"""

Presumably there are some low-hanging fruit we could clean out also on windows images?

CC @carterbox @bkpoon @mikemhenry @beckermr @jakirkham as people who touched these lines in recent times.

[bkpoon]

On Windows, I switch the build to use C:\ instead of D:\. There should be at least 70 GB available. To move the build, you modify conda-forge.yml to have

azure:
  settings_win:
    variables:
      CONDA_BLD_PATH: C:\\bld\\

I used to use a directory in C:\Miniconda, but I eventually hit an issue with long path names. C:\bld is short enough. I suggested this for the pytorch Windows build here (conda-forge/pytorch-cpu-feedstock#231 (comment)).