Migration v42: HideFrom tooltip consistency migration (#110517)

* Migration to be verified: v42 HideFrom tooltip migration

* snap update

* make gen cue

* Add comments of 42 being the final version

apps/dashboard/pkg/migration/testdata/output/v16.empty-rows-and-panels-array.json

@@ -938,7 +938,7 @@
     }
   ],
   "refresh": "30s",
-  "schemaVersion": 41,
+  "schemaVersion": 42,
   "style": "dark",
   "tags": [
     "sample-monitoring"