time for a new release: rc2

I have uploaded rc2 of pypy v7.3.2 to https://buildbot.pypy.org/pypy/ 
(note the trailing slash)


The hashes are here 
https://foss.heptapod.net/pypy/pypy.org/-/blob/branch/default/pages/download_advanced.rst#L465


The release note is here https://doc.pypy.org/en/latest/release-v7.3.2.html


This release does include a 3.7 alpha.


Please try them out, especially on windows (extra points for non-english 
interfaces and install paths) and macos (extra points for machines that 
run without homebrew stuff installed), to make sure you can run your 
project with them.


Any comments are welcome.


Since the rc1 candidates, we have updated the stdlibs of 3.6 and 2.7 for 
various upstream issues and CVEs, and fixed an issue with rpython on 
ARM. Thanks to all who helped test and fix. 3.7 now uses stdlib 3.7.9.

Matti