Bump unix's version number to 126.96.36.199 in HEAD
In order to perform a
unix submodule bump (as requested in #15018 (closed)), we'll need to deal with the fact that its major version number was bumped upstream to 188.8.131.52. As a result, the following boot libraries will need to be adjusted:
Some of these can be changed in-place, while others will require downstream changes. I'll update this ticket as I progress.