RetryConnection: Make class compatible with ipl\Sql\Connection

Author: sukhwinder33445

library/Reporting/RetryConnection.php

@@ -5,11 +5,18 @@
 namespace Icinga\Module\Reporting;
 
 use ipl\Sql\Connection;
+use ipl\Sql\Delete;
+use ipl\Sql\Insert;
+use ipl\Sql\Select;
+use ipl\Sql\Update;
+use PDOStatement;
 
 class RetryConnection extends Connection
 {
-    public function prepexec($stmt, $values = null)
-    {
+    public function prepexec(
+        Delete|Insert|Select|Update|string $stmt,
+        string|array|null $values = null
+    ): false|PDOStatement {
         try {
             $sth = parent::prepexec($stmt, $values);
         } catch (\Exception $e) {