- add `uv` to dependencies: saves builder(s) from manually having to manage a venv for python build dependencies
- when building wheels, pip automatically creates the environment with those dependencies, so no need for uv
- when running simply `make ENABLE_PYOSYS=1`, this is not the case. people attempting to `pip3 install --upgrade pybind11 cxxheaderparser` to add it to their system packages will be met with a scare message about "breaking system packages"
- update installation instructions to drop boost and add uv instead
- update ci scripts to use `macos-15[-intel]` (`macos-13` sunset in early december)
* Fix building and running unit tests
* Enable unit tests
* Add gtest always
* test-sanitizers.yml: Use makefile.conf
* proper test setup
* make it run on macOS
* Run libyosys build only for unit tests after testing is done
* Disable LTO on public CI
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Co-authored-by: Krystine Sherwin <93062060+KrystalDelusion@users.noreply.github.com>
