update changelog

CHANGELOG.md

@@ -68,6 +68,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Exception: Cannot read property "each" of undefined after drawing a single point (<https://github.com/openvinotoolkit/cvat/pull/2307>)
 - Cannot read property 'label' of undefined (Fixed?) (<https://github.com/openvinotoolkit/cvat/pull/2311>)
 - Excluded track frames marked `outside` in `CVAT for Images` export (<https://github.com/openvinotoolkit/cvat/pull/2345>)
+- An error on exporting not `jpg` or `png` images in TF Detection API format (<https://github.com/openvinotoolkit/datumaro/issues/35>)
 
 ### Security