Bump omnibus-software from `1b2dfe4` to `ad7ed67` in /omnibus
Bump omnibus-software from `1b2dfe4` to `ad7ed67` in /omnibus

Bumps [omnibus-software](https://github.com/chef/omnibus-software) from `1b2dfe4` to `ad7ed67`.
- [Release notes](https://github.com/chef/omnibus-software/releases)
- [Commits](https://github.com/chef/omnibus-software/compare/1b2dfe467cbc22e0e2e232e2648af3482830bfd7...ad7ed679f1b34c20f8be34365d38cb1c21e737cd)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
chef/chef-dk,chef/chef-dk,chef/chef-dk