Issue #3387695 by catch, mondrake, mfb: Use more entropy in TransactionManager

core/lib/Drupal/Core/Database/Transaction/TransactionManagerBase.php

@@ -187,7 +187,7 @@ public function push(string $name = ''): Transaction {
     }
 
     // Define an unique id for the transaction.
-    $id = uniqid();
+    $id = uniqid('', TRUE);
 
     // Add an item on the stack, increasing its depth.
     $this->addStackItem($id, new StackItem($name, $type));