SEC-10095 test(cypress): demote unstable tests (#36099)

* test(cypress): demote unstable tests

* follow fixes

* fix merging playwright reports

e2e-tests/cypress/tests/integration/channels/integrations/incoming_webhook/basic_formatting_spec.js

@@ -7,7 +7,6 @@
 // - Use element ID when selecting an element. Create one if none.
 // ***************************************************************
 
-// Stage: @prod
 // Group: @channels @incoming_webhook
 
 describe('Incoming webhook', () => {

e2e-tests/cypress/tests/integration/channels/integrations/incoming_webhook/delete_incoming_webhook_spec.js

@@ -7,7 +7,6 @@
 // - Use element ID when selecting an element. Create one if none.
 // ***************************************************************
 
-// Stage: @prod
 // Group: @channels @incoming_webhook
 
 import {enableUsernameAndIconOverride} from './helpers';

e2e-tests/cypress/tests/integration/channels/integrations/incoming_webhook/inapp_username_profile_override_spec.js

@@ -7,7 +7,6 @@
 // - Use element ID when selecting an element. Create one if none.
 // ***************************************************************
 
-// Stage: @prod
 // Group: @channels @incoming_webhook
 
 import {getRandomId} from '../../../../utils';

e2e-tests/cypress/tests/integration/channels/integrations/incoming_webhook/long_url_embedded_image_spec.js

@@ -7,7 +7,6 @@
 // - Use element ID when selecting an element. Create one if none.
 // ***************************************************************
 
-// Stage: @prod
 // Group: @channels @integrations
 
 describe('Integrations', () => {

e2e-tests/cypress/tests/integration/channels/integrations/incoming_webhook/setting_spec.js

@@ -7,7 +7,6 @@
 // - Use element ID when selecting an element. Create one if none.
 // ***************************************************************
 
-// Stage: @prod
 // Group: @channels @incoming_webhook
 
 import {getRandomId} from '../../../../utils';