Bump num_cpus from 1.11.1 to 1.12.0 (#411)
Bump num_cpus from 1.11.1 to 1.12.0 (#411)

Bumps [num_cpus](https://github.com/seanmonstar/num_cpus) from 1.11.1 to 1.12.0.
- [Release notes](https://github.com/seanmonstar/num_cpus/releases)
- [Changelog](https://github.com/seanmonstar/num_cpus/blob/master/CHANGELOG.md)
- [Commits](https://github.com/seanmonstar/num_cpus/compare/v1.11.1...v1.12.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
alex/otp-cop