updating build ref file

Author: niphlod

assets/dbatools-buildref-index.json

@@ -1,5 +1,5 @@
 {
-    "LastUpdated": "2022-04-01T00:00:00",
+    "LastUpdated": "2022-04-19T00:00:00",
     "Data": [
         {
             "Version": "8.0.47",
@@ -4389,6 +4389,11 @@
             "CU": "CU15",
             "Version": "15.0.4198",
             "KBList": "5008996"
+        },
+        {
+            "CU": "CU16",
+            "Version": "15.0.4223",
+            "KBList": "5011644"
         }
     ]
 }