Zig++ 0.17.0-dev.2391+zigpp.b80ea5342

What's Changed

• ci: build once per runner with the newest release, run the suites in parallel, fix two std.Io cancelation bugs by @mattneel in #13
• ppup: keep to the home it is installed in, and leave profiles to the installer by @mattneel in #14

Full Changelog: zigpp-0.17.0-dev.2383...zigpp-0.17.0-dev.2391