chore(blob): add maintenance task to recompute blob checksum

app/tasks/maintenance/recompute_blob_checksum_task.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Maintenance
+  class RecomputeBlobChecksumTask < MaintenanceTasks::Task
+    attribute :blob_ids, :string
+    validates :blob_ids, presence: true
+
+    def collection
+      ids = blob_ids.split(',').map(&:strip).map(&:to_i)
+      ActiveStorage::Blob.where(id: ids)
+    end
+
+    def process(blob)
+      blob.upload(StringIO.new(blob.download), identify: false)
+      blob.save!
+    end
+
+    def count
+      # Optionally, define the number of rows that will be iterated over
+      # This is used to track the task's progress
+    end
+  end
+end