Merge branch '4.4'

* 4.4:
  bump phpunit-bridge cache ids

Author: nicolas-grekas

bin/simple-phpunit.php

@@ -10,7 +10,7 @@
  */
 
 // Please update when phpunit needs to be reinstalled with fresh deps:
-// Cache-Id-Version: 2019-06-26 11:00 UTC
+// Cache-Id-Version: 2019-07-04 18:00 UTC
 
 error_reporting(-1);