[REF] website, project: fix tour dropdown-menu click

Remove jQuery usage as Bootstrap 5 don't relay on jQuery anymore,
even if Bootstrap as a jQuery compatibility layer.

From [1]
> All the events for the dropdown are now triggered on the dropdown
> toggle button and then bubbled up to the parent element.

From [2]
> events triggered with jQuery do not go through the native layer, so
> if a handler has been bound natively, it won't be called.

Note:
[1] https://getbootstrap.com/docs/5.1/migration/#dropdowns
[2] https://github.com/odoo/odoo/commit/a535d7c6fb5a6abe083e7d665d7243f5061a4773

Task ID: 2766483

Part-of: odoo/odoo#95450

addons/project/static/tests/tours/personal_stage_tour.js

@@ -45,7 +45,7 @@ tour.register('personal_stage_tour', {
     content: 'Open column edit dropdown',
     trigger: '.o_kanban_header:eq(0)',
     run: function () {
-        $('.o_kanban_config.dropdown .dropdown-toggle').eq(0).click();
+        document.querySelector('.o_kanban_config.dropdown .dropdown-toggle').dispatchEvent(new Event('click'));
     },
 }, {
     content: "Try editing inbox",

addons/project/static/tests/tours/project_update_tour_tests.js

@@ -81,9 +81,9 @@ tour.register('project_update_tour', {
     trigger: '.o_kanban_quick_create .o_kanban_add',
     extra_trigger: '.o_kanban_project_tasks'
 }, {
-    trigger: '.o_kanban_header:eq(1)',
+    trigger: '.o_kanban_group:nth-child(2) .o_kanban_header',
     run: function () {
-        $('.o_kanban_config.dropdown .dropdown-toggle').eq(1).click();
+        document.querySelector('.o_kanban_group:nth-child(2) .o_kanban_config.dropdown .dropdown-toggle').dispatchEvent(new Event('click'))
     }
 }, {
     trigger: ".dropdown-item.o_column_edit",

addons/website/static/tests/tours/edit_megamenu.js

@@ -10,7 +10,7 @@ const toggleMegaMenu = (stepOptions) => Object.assign({}, {
         // If the mega menu is displayed inside the extra menu items, it should
         // already be displayed.
         if (!this.$anchor[0].closest('.o_extra_menu_items')) {
-            this.$anchor[0].click();
+            this.$anchor[0].dispatchEvent(new Event('click'))
         }
     },
 }, stepOptions);