Merge branch '4.4' into 5.4

* 4.4:
  [Mime] Throw exception when body in Email attach method is not ok
  [VarDumper][VarExporter] Deal with DatePeriod->include_end_date on PHP 8.2
  [Cache] Throw when "redis_sentinel" is used with a non-Predis "class" option
  Bootstrap 4 fieldset for row errors
  Fix dumping extension config without bundle

Author: nicolas-grekas

Tests/Fixtures/datetime.php

@@ -70,6 +70,7 @@
             'interval' => $o[6],
             'recurrences' => 5,
             'include_start_date' => true,
+            'include_end_date' => false,
         ],
     ]
 );