Connection: Add lastInsertId to the interface

Helps with static analysis and test doubles. (phpunit
will not mock/stub this method unless declared)

Author: nilmerg

src/Connection.php

@@ -438,6 +438,18 @@ public function insert($table, $data)
         return $this->prepexec($insert);
     }
 
+    /**
+     * Get the ID of the last inserted row
+     *
+     * @param ?string $name The name of the sequence object from which the ID should be returned.
+     *
+     * @return false|string
+     */
+    public function lastInsertId(string $name = null): false|string
+    {
+        return $this->pdo?->lastInsertId($name) ?? false;
+    }
+
     /**
      * Update table rows with the specified data, optionally based on a given condition
      *