Update CHANGELOG.md to reflect the promotion of 3.16.2

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

Author: chef-ci

CHANGELOG.md

@@ -1,23 +1,20 @@
-<!-- latest_release 3.16.2 -->
-## [v3.16.2](https://github.com/inspec/train/tree/v3.16.2) (2026-04-20)
-
-#### Merged Pull Requests
-- Upgrade json gem version [#829](https://github.com/inspec/train/pull/829) ([chandra-progress](https://github.com/chandra-progress))
+<!-- latest_release -->
 <!-- latest_release -->
 
-<!-- release_rollup since=3.16.1 -->
-### Changes not yet released to rubygems.org
-
-#### Merged Pull Requests
-- Upgrade json gem version [#829](https://github.com/inspec/train/pull/829) ([chandra-progress](https://github.com/chandra-progress)) <!-- 3.16.2 -->
+<!-- release_rollup -->
 <!-- release_rollup -->
 
 <!-- latest_stable_release -->
+## [v3.16.2](https://github.com/inspec/train/tree/v3.16.2) (2026-04-20)
+
+#### Merged Pull Requests
+- Upgrade json gem version [#829](https://github.com/inspec/train/pull/829) ([chandra-progress](https://github.com/chandra-progress))
+<!-- latest_stable_release -->
+
 ## [v3.16.1](https://github.com/inspec/train/tree/v3.16.1) (2026-01-20)
 
 #### Merged Pull Requests
 - Handle exceptions during pipe connection wait in WindowsPipeRunner [#821](https://github.com/inspec/train/pull/821) ([sathish-progress](https://github.com/sathish-progress))
-<!-- latest_stable_release -->
 
 ## [v3.16.0](https://github.com/inspec/train/tree/v3.16.0) (2026-01-14)