Update num_enum requirement from 0.6 to 0.7
Updates the requirements on [num_enum](https://github.com/illicitonion/num_enum) to permit the latest version.
- [Commits](https://github.com/illicitonion/num_enum/commits)
---
updated-dependencies:
- dependency-name: num_enum
dependency-type: direct:production
...
Signed-off-by: dependabot[bot] <support@github.com>