* fix: update conditional static assertion
There is a static assertion that spuriously fails on MSVC that was
version checked. Unfortunately it fires every time there is a new
compiler update, so for now we will remove the version check and add it
back once the compiler bug is fixed.
* fix: ios pipeline failure
Looks like somewhere along the line, the iOS simulator changed the range
of support iOS versions. This changes bumps the version from 9 to 12.0.
Also noticed that the GSL OSX bundle version was quite out of date. I
bumped this from 3.1.0 to 4.2.0 and created an upgrade checklist file in
docs/ so we don't forget these types of tasks in the future.
* bump xcode version from 15.4 to 16.4
* fix compiler warning when building gtest for ios
* allow for missing include dirs on command line
* replace windows-2019 with windows-2025
* update visual studio versions after runner bump
* PR feedback: make sure markdown links are syntactically correct
Carson Radtke
494e6e988c