- Updating to remove usage of a deprecated enum in boost, we also needed
to update the version of boost used in the Linux build, so now we use
Ubuntu 22 which provides boost 1.74
- Updating Ubuntu must have updated the default C++ standard used when
building TGUI, because TGUI started throwing compiler errors coming
from conditional code that is for >C++17 only. I added an environment
variable to install-TGUI.sh so it will build with C++14 to match the
standard for the cboe build on linux
- some CI runs were throwing network errors from apt-get install, so I
added apt-get update as a precaution. Maybe less builds will fail from
network errors now?