i18n(fr): update code snippet in upgrade-to/v5.mdx (#12164)

Co-authored-by: Yan <[email protected]>

Author: ArmandPhilippot

src/content/docs/fr/guides/upgrade-to/v5.mdx

@@ -723,7 +723,7 @@ export const onRequest = defineMiddleware(async (context, next) => {
 	if (payload) {
 		const { actionName, actionResult } = payload.json();
 		setActionResult(actionName, actionResult);
-		context.cookies.delete('ACTION_PAYLOAD');
+		context.cookies.delete('ACTION_PAYLOAD', { path: '/' });
 		return next();
 	}
 
@@ -735,6 +735,11 @@ export const onRequest = defineMiddleware(async (context, next) => {
 		context.cookies.set('ACTION_PAYLOAD', {
 			actionName: action.name,
 			actionResult: serializeActionResult(actionResult),
+		}, {
+			path: '/',
+			httpOnly: true,
+			sameSite: 'lax',
+			maxAge: 60
 		});
 
 		if (actionResult.error) {