add the organization_slug update

src/Service/HelloAsso/ConnectionService.php

@@ -232,6 +232,7 @@ class ConnectionService extends ApiRequestService
                 'refresh_token' => $data['refresh_token'] ?? null,
                 'token_type' => $data['token_type'] ?? 'Bearer',
                 'expires_in' => $data['expires_in'] ?? null,
+                'organization_slug' => $data['organization_slug'] ?? null,
             ];
         } catch (\JsonException $e) {
             throw new HttpException(500, 'Failed to parse authentication response: '.$e->getMessage(), $e);