Adjust changelog categories after reorg (#83087)

The Core/Features team is now Data Management, so change the allowed
changelog areas to match.

Author: pugnascotia

build-tools-internal/src/main/resources/changelog-schema.json

@@ -34,17 +34,17 @@
             "EQL",
             "Engine",
             "FIPS",
-            "Features/CAT APIs",
-            "Features/Data streams",
-            "Features/Features",
-            "Features/ILM+SLM",
-            "Features/Indices APIs",
-            "Features/Ingest",
-            "Features/Java High Level REST Client",
-            "Features/Java Low Level REST Client",
-            "Features/Monitoring",
-            "Features/Stats",
-            "Features/Watcher",
+            "Data Management/CAT APIs",
+            "Data Management/Data streams",
+            "Data Management/Features",
+            "Data Management/ILM+SLM",
+            "Data Management/Indices APIs",
+            "Data Management/Ingest",
+            "Data Management/Java High Level REST Client",
+            "Data Management/Java Low Level REST Client",
+            "Data Management/Monitoring",
+            "Data Management/Stats",
+            "Data Management/Watcher",
             "Geo",
             "Graph",
             "Highlighting",