update generated persistence docs

Author: localstack-bot

data/persistence/coverage.json

@@ -237,6 +237,13 @@
     "test_suite": false,
     "limitations": ""
   },
+  "backupsearch": {
+    "service": "backupsearch",
+    "full_name": "backupsearch",
+    "support": "unknown",
+    "test_suite": false,
+    "limitations": ""
+  },
   "batch": {
     "service": "batch",
     "full_name": "Batch",