Bump omnibus-software from 1fa2052 to dd2a33e in /omnibus

Bumps [omnibus-software](https://github.com/chef/omnibus-software) from `1fa2052` to `dd2a33e`.
- [Release notes](https://github.com/chef/omnibus-software/releases)
- [Commits](chef/omnibus-software@1fa2052...dd2a33e)

Signed-off-by: dependabot[bot] <support@github.com>

omnibus/Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/chef/omnibus-software.git
-  revision: 1fa20525db43784dc91e647015f2ff46cac15b37
+  revision: dd2a33e9b65365539c3226ed3438cb1bc4525964
   branch: master
   specs:
     omnibus-software (4.0.0)