make sorbet structs comparable

rake/blob_file.rake

@@ -1,6 +1,15 @@
 require "find"
 
 namespace :blob_file do
+  desc "migrate blob entries in parallel"
+  task migrate_blob_entries_parallel: %i[environment] do
+    batch_size = ENV["batch_size"]&.to_i || 16
+    start_at = ENV["start_at"] || "0" * 64
+
+    migrator = Domain::BlobFile::MigrateBlobEntryToBlobFile.new
+    migrator.run(batch_size: batch_size, start_sha256: start_at)
+  end
+
   desc "migrate blob files to the new format"
   task migrate_blob_entries: %i[environment] do
     batch_size = ENV["batch_size"]&.to_i || 1000