Rebuild for PyPy3.7 for windows

[regro-cf-autotick-bot]

This PR has been triggered in an effort to update pypy37-windows.

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[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[mattip]

The build is failing on a check for OpenSSL version, it seems somehow cryptography is picking up an older version somewhere.

===== testing package: cryptography-3.4.7-py37h7675efb_0 =====
running run_test.py
Version used by cryptography:
OpenSSL 1.1.1j  16 Feb 2021
Version in conda environment:
OpenSSL 1.1.1k  25 Mar 2021
Traceback (most recent call last):
  File "D:\bld\cryptography_1625500056165\test_tmp\run_test.py", line 23, in <module>
    assert linked_version == env_version
AssertionError

[h-vetinari]

I remember windows doing weird things to prefer c:/system over pretty much everything. Ray Donnelly had introduced CONDA_DLL_SEARCH_MODIFICATION_ENABLE, which is used in the CPython builds. There's some relevant code for this probably in the cpython patches (as well as conda itself, obviously).

Some discussion can be found in this PR, conda-forge/staged-recipes#11452, as well as its ancestor conda-forge/openssl-feedstock#56

[mattip]

It seems this patch is the one that adds CondaEcosystemModifyDllSearchPath_Init(), which checks if CONDA_DLL_SEARCH_MODIFICATION_ENABLE is in the environment and if so sets a different Dll search path. This new function in turn is called by the main entry point pymain_main. So I guess I should try to port that patch to PyPy.

It seems there are more patches that might be worth porting to PyPy.

[mattip]

@conda-forge-admin, please restart ci

[mattip]

The migration target PyPy 3.7 for windows passed.

ppc64le failed after tests when doing resource summary with

Validating outputs

Cloning into '/tmp/tmpb1dza552_recipe/feedstock-outputs'...

fatal: unable to access 'https://github.com/conda-forge/feedstock-outputs.git/': OpenSSL SSL_connect: Connection reset by peer in connection to github.com:443 

As that is not a target for this PR, I think this is ready for review

[h-vetinari]

@conda-forge/cryptography anyone want to press the button?