Update CHANGELOG.md

Author: aaronskiba

CHANGELOG.md

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 # Changelog
 
+- Fix and Refactor Querying of `template.phases` and Associations Within `OrgAdmin TemplatesController` [#3472](https://github.com/DMPRoadmap/roadmap/pull/3472)
 - Refactor Plan.deep_copy(plan) [#3469](https://github.com/DMPRoadmap/roadmap/pull/3469)
 - Fixed a bug in the deep copy of plans where the old identifier was being copied into the new plan. We now copy the generated id of the new plan to the identifier field.
 - Fixed bar chart click function in the Usage dashboard (GitHub issue #3443)