Add changelog for 0.47.0

CHANGELOG.md

+## 0.47.0 (2024-12-10)
+
+### Added (1 change)
+
+- [Add opencontainers image annotations](https://gitlab.com/components/opentofu/-/commit/ea36a659e53dc2f098f5b2c7059f3c7df5616996) ([merge request](https://gitlab.com/components/opentofu/-/merge_requests/209))
+
 ## 0.47.0-rc2 (2024-12-06)
 
 ### Added (1 change)