Rebuild all source packages

It is not a good idea to rely on amd64 uploads, since the uploader may
want the package to be built in the CI environment. Hence, we will need
to rebuild all source packages, even if they do not use gcc during build
time.

salt/files/check_new_uploads

@@ -55,7 +55,7 @@ for num in data[0].split():
 
     if parsed_email['subject'].startswith('Accepted') and parsed_email['list-id'] == list_id:
         pkg = parse_message(parsed_email.get_payload())
-        if (pkg['dist'] in ['unstable', 'sid']) and 'amd64' in pkg['arch']:
+        if (pkg['dist'] in ['unstable', 'sid']) and 'source' in pkg['arch']:
             trigger_build(pkg)
     # M.store(num, '+FLAGS', '\\Deleted')
 # M.expunge()