[6.4] Fix remainings from previous deprecations

Author: nicolas-grekas

Tests/Middleware/Debug/MiddlewareTest.php

@@ -277,5 +277,7 @@ public function testWithoutStopwatch(callable $sqlMethod, callable $endTransacti
         $this->conn->beginTransaction();
         $sqlMethod($this->conn, 'SELECT * FROM products');
         $endTransactionMethod($this->conn);
+
+        $this->addToAssertionCount(1);
     }
 }