v7.3.13 was released (for python3.9) and pypy3.6-feedstock updated

[mattip]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

Following the pattern in #29

[conda-forge-webservices]

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]

I would like to merge this without aarch64 and ppc64le builds, there are ongoing problems with pandas that I want to see if this version fixes. If that works, I will build the aarch64 and ppc64le packages.

[mattip]

Whoops, too fast. The new packages have not percolated out yet.

[h-vetinari]

Builds from conda-forge/pypy3.6-feedstock#110 should be online now

[h-vetinari]

Merging this. If someone does the arch/ppc builds, all the better (though at this point, I'd consider unsupporting pypy on the arches - it's doubly niche, and given we don't have CI, it's just completely out of whack between maintenance effort and utility)

[mattip]

Thanks!