uploads: set upload_media_asset.status to active.

Fix the status being set to pending instead of active for new upload
media assets.

script/fixes/103_fix_pending_upload_media_assets.rb

@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+
+require_relative "base"
+
+with_confirmation do
+  UploadMediaAsset.joins(:upload).pending.where(upload: { status: "completed" }).update_all(status: "active")
+end