fix(specs): change fileSize to int64 type (generated)

algolia/api-clients-automation#4877

Co-authored-by: algolia-bot <accounts+algolia-api-client-bot@algolia.com>
Co-authored-by: Pierre Millot <pierre.millot@algolia.com>

Author: algolia-bot

src/main/scala/algoliasearch/search/FetchedIndex.scala

@@ -66,8 +66,8 @@ case class FetchedIndex(
     createdAt: String,
     updatedAt: String,
     entries: Int,
-    dataSize: Int,
-    fileSize: Int,
+    dataSize: Long,
+    fileSize: Long,
     lastBuildTimeS: Int,
     numberOfPendingTasks: Int,
     pendingTask: Boolean,