Update CHANGELOG.md to reflect the promotion of 3.16.0

Obvious fix; these changes are the result of automation not creative thinking.

Author: chef-ci

CHANGELOG.md

@@ -1,23 +1,20 @@
-<!-- latest_release 3.16.0 -->
-## [v3.16.0](https://github.com/inspec/train/tree/v3.16.0) (2026-01-14)
-
-#### Merged Pull Requests
-- CHEF-19255 Fix pipe broken issue [#818](https://github.com/inspec/train/pull/818) ([sathish-progress](https://github.com/sathish-progress))
+<!-- latest_release -->
 <!-- latest_release -->
 
-<!-- release_rollup since=3.15.2 -->
-### Changes not yet released to rubygems.org
-
-#### Merged Pull Requests
-- CHEF-19255 Fix pipe broken issue [#818](https://github.com/inspec/train/pull/818) ([sathish-progress](https://github.com/sathish-progress)) <!-- 3.16.0 -->
+<!-- release_rollup -->
 <!-- release_rollup -->
 
 <!-- latest_stable_release -->
+## [v3.16.0](https://github.com/inspec/train/tree/v3.16.0) (2026-01-14)
+
+#### Merged Pull Requests
+- CHEF-19255 Fix pipe broken issue [#818](https://github.com/inspec/train/pull/818) ([sathish-progress](https://github.com/sathish-progress))
+<!-- latest_stable_release -->
+
 ## [v3.15.2](https://github.com/inspec/train/tree/v3.15.2) (2026-01-09)
 
 #### Merged Pull Requests
 - Update ostruct dep version [#819](https://github.com/inspec/train/pull/819) ([Stromweld](https://github.com/Stromweld))
-<!-- latest_stable_release -->
 
 ## [v3.15.1](https://github.com/inspec/train/tree/v3.15.1) (2025-12-23)