Fix changelog

.chloggen/dd-feature-gate-removal.yaml

@@ -10,7 +10,7 @@ component: datadogconnector
 note: Remove feature gate `connector.datadogconnector.performance`
 
 # Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
-issues: []
+issues: [31638]
 
 # (Optional) One or more lines of additional information to render under the primary note.
 # These lines will be padded with 2 spaces and then inserted directly into the document.