modify changelog entry

Author: sachaarbonel

packages/stream_feed/CHANGELOG.md

@@ -12,7 +12,7 @@ Or = [origin] can be a String or a Reaction or an User
 - breaking: along with these changes we removed `EnrichableField` field from `EnrichedActivity` 
 - new: there is a type definition `EnrichedActivity` to handle most use cases of `GenericEnrichedActivity` (User,String,String,String)
 - fix: a time drift issue in token generation when using the low level client sever-side
-- bump: dart sdk package constraints to 2.13 to make use of new typedefs
+- bump: dart sdk package constraints to 2.14 to make use of typedefs for non function types
 
 
 ## 0.3.0: 06/09/2021