update atomic import

[dunnoconnor]

Update imports from std.os.atomic import Atomic → from std.atomic import Atomic per the current Mojo stdlib docs

[BradLarson]

You may need to bump the pixi.toml to the latest nightly to get the library changes required for these to compile.

[dunnoconnor]

You may need to bump the pixi.toml to the latest nightly to get the library changes required for these to compile.

Thanks, now updated