Skip storage scan in dataset upload if disabled for datastore (#8733)

### Steps to test:
- For datastore with `reportUsedStorage.enabled = false` (as in sample
setup), upload a dataset, no storage scan should be performed for that
dataset (check that no values show up in db).

### Issues:
- fixes https://scm.slack.com/archives/C02H5T8Q08P/p1751294200593839

------
- [x] Added changelog entry (create a `$PR_NUMBER.md` file in
`unreleased_changes` or use `./tools/create-changelog-entry.py`)
- [x] Considered [common edge
cases](../blob/master/.github/common_edge_cases.md)
- [x] Needs datastore update after deployment

Author: fm3

app/models/storage/UsedStorageService.scala

@@ -89,11 +89,15 @@ class UsedStorageService @Inject()(val actorSystem: ActorSystem,
   def refreshStorageReportForDataset(dataset: Dataset): Fox[Unit] =
     for {
       dataStore <- datasetService.dataStoreFor(dataset)
-      dataStoreClient = new WKRemoteDataStoreClient(dataStore, rpc)
-      organization <- organizationDAO.findOne(dataset._organization)
-      report <- dataStoreClient.fetchStorageReport(organization._id, Some(dataset.name))
-      _ <- organizationDAO.deleteUsedStorageForDataset(dataset._id)
-      _ <- organizationDAO.upsertUsedStorage(organization._id, dataStore.name, report)
+      _ <- if (dataStore.reportUsedStorageEnabled) {
+        val dataStoreClient = new WKRemoteDataStoreClient(dataStore, rpc)
+        for {
+          organization <- organizationDAO.findOne(dataset._organization)
+          report <- dataStoreClient.fetchStorageReport(organization._id, Some(dataset.name))
+          _ <- organizationDAO.deleteUsedStorageForDataset(dataset._id)
+          _ <- organizationDAO.upsertUsedStorage(organization._id, dataStore.name, report)
+        } yield ()
+      } else Fox.successful(())
     } yield ()
 
 }

unreleased_changes/8733.md

@@ -0,0 +1,2 @@
+### Fixed
+- Fixed that on dataset upload the storage usage would get scanned even if it is disabled in config for that particular data store server.