Add changelog for 2.5.0

CHANGELOG.md

+## 2.5.0 (2025-05-24)
+
+### Added (2 changes)
+
+- [Introduce `detect-drift` template](https://gitlab.com/components/opentofu/-/commit/9b52199d4dbea4b4f67727069d0259fe3808ff51) ([merge request](https://gitlab.com/components/opentofu/-/merge_requests/299))
+- [Introduce drift detection modes for `fetch-mr-plan` job](https://gitlab.com/components/opentofu/-/commit/4d6da60908df5ec49b1e5972d628b94467e5dc39) ([merge request](https://gitlab.com/components/opentofu/-/merge_requests/298))
+
+### Changed (1 change)
+
+- [Add `detect-drift` job to `job-templates` template](https://gitlab.com/components/opentofu/-/commit/31a3a1666de8c4811bb0ab1b63765decfbb92575) ([merge request](https://gitlab.com/components/opentofu/-/merge_requests/299))
+
 ## 2.5.0-rc5 (2025-05-24)
 
 ### Added (2 changes)