Bump omnibus-software from 2bda5ed to 76a05c8 in /omnibus

Bumps [omnibus-software](https://github.com/chef/omnibus-software) from `2bda5ed` to `76a05c8`.
- [Release notes](https://github.com/chef/omnibus-software/releases)
- [Commits](chef/omnibus-software@2bda5ed...76a05c8)

---
updated-dependencies:
- dependency-name: omnibus-software
  dependency-type: direct:production
...

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: 2bda5edeaec109a65f9544db8ffd73a2ca5adfc9
+  revision: 76a05c83817bdc8e057fb3b761143112d40349e5
   branch: main
   specs:
     omnibus-software (4.0.0)
@@ -355,7 +355,7 @@ GEM
     toml-rb (2.1.2)
       citrus (~> 3.0, > 3.0)
     tomlrb (1.3.0)
-    train-core (3.10.0)
+    train-core (3.10.1)
       addressable (~> 2.5)
       ffi (!= 1.13.0)
       json (>= 1.8, < 3.0)