[FIX] web: test: ensure to wait for dialog to be opened

Before this commit, the modified test sometimes failed on runbot.
We need to wait for an extra tick, because the dialog might be
rendered in another animation frame that the crashing client
action.

closes odoo/odoo#73675

Signed-off-by: Lucas Perais (lpe) <lpe@odoo.com>

addons/web/static/tests/webclient/actions/error_handling_tests.js

@@ -1,10 +1,9 @@
 /** @odoo-module **/
 
-import { browser } from "@web/core/browser/browser";
 import { registry } from "@web/core/registry";
 import { createWebClient, doAction, getActionManagerServerData } from "./../helpers";
 import { registerCleanup } from "../../helpers/cleanup";
-import { click, patchWithCleanup } from "../../helpers/utils";
+import { click, nextTick, patchWithCleanup } from "../../helpers/utils";
 import { errorService } from "@web/core/errors/error_service";
 
 const { Component, tags } = owl;
@@ -73,6 +72,7 @@ QUnit.module("ActionManager", (hooks) => {
         assert.containsOnce(webClient, ".my_button");
 
         await click(document.querySelector(".my_button"));
+        await nextTick();
         assert.containsOnce(webClient, ".my_button");
         assert.containsOnce(webClient, ".o_dialog_error");
     });