Update license headers in C files (apple#693)

## Type of Change
- [x] Bug fix
- [ ] New feature  
- [ ] Breaking change
- [ ] Documentation update

## Motivation and Context
There was a duplicated and outdated license header in some files.

## Testing
- [x] Tested locally
- [ ] Added/updated tests
- [ ] Added/updated docs

0.4.1 release

0.4.0 release

0.3.0 release.

Adds `container network` for macOS 26. (apple#243)

See discussion below for example. For multiple network interfaces in a
single container we'll want to integrate against a containerization that
includes apple/containerization#156.

The change bumps the containerization dependency to 0.2.0 and addresses
the breaking API changes.

```console
% container network
OVERVIEW: Manage container networks

USAGE: container network <subcommand>

OPTIONS:
  --version               Show the version.
  -h, --help              Show help information.

SUBCOMMANDS:
  create                  Create a new network
  delete, rm              Delete one or more networks
  list, ls                List networks
  inspect                 Display information about one or more networks

  See 'container help network <subcommand>' for detailed help.
```