actions/cache@v3
actions/checkout@v3
actions/upload-artifact@v3
actions/setup-dotnet@v2
actions/setup-java@v3
actions/setup-python@v4
mymindstorm/setup-emsdk@v11
Also reset cache keys as we're going to cleanup all caches.
This doesn't change the behavior when `--jobs`/`-j` is specified as a
command-line argument or in `SCONSFLAGS`.
The SCons hack used to know if `num_jobs` was set by the user is derived
from the MongoDB setup.
We use `os.cpu_count()` for portability (available since Python 3.4).
With 4 CPUs or less, we use the max. With more than 4 we use max - 1 to
preserve some bandwidth for the user's other programs.
SConstruct change also makes it possible to outright delete the `editor`
folder in a `tools=no` build, which we use in CI to ensure no invalid
cross-dependencies are added.
