Build windows library with openssl support

[beenje]

Checklist

• [X] Used a personal fork of the feedstock to propose changes
• [X] Bumped the build number (if the version is unchanged)
• [x] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [X] Ensured the license file is being packaged.

Unix is already built with the --with-openssl flag. On Windows, we need to set the OPEN_SSL_ROOT variable.

This is required to use the TLS / SSL transport.

[conda-forge-webservices[bot]]

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.

[beenje]

@conda-forge-admin, please rerender