DOC: update CHANGELOG

CHANGELOG.md

@@ -27,6 +27,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   Query: AND does not work with sub-properties
 * [caosdb-server#132](https://gitlab.com/caosdb/caosdb-server/-/issues/132)
   Query: subproperties should not require parentheses
+* [caosdb-server#174](https://gitlab.indiscale.com/caosdb/src/caosdb-server/-/issues/174)
+  GRPC-API: Server should gracefully handle non-file entities with file-like
+  attributes.
 
 ### Security