CLD-7841 Optimize E2E testing costs (#27883)

* Utilize free runners for E2E tests, report back to PR on run completion
* Increase test stability on smaller instances
* Merge worker reports
* merge start+prepare steps
* upgrade keycloak
* increase test timeouts
* Add video recording to report artifacts

Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>

---------

Co-authored-by: Saturnino Abril <5334504+saturninoabril@users.noreply.github.com>

e2e-tests/cypress/tests/integration/channels/files_and_attachments/youtube_video_spec.js

@@ -10,6 +10,8 @@
 // Stage: @prod
 // Group: @channels @files_and_attachments
 
+import * as TIMEOUTS from '../../../fixtures/timeouts';
+
 describe('YouTube Video', () => {
     before(() => {
         // # Enable Link Previews
@@ -27,10 +29,12 @@ describe('YouTube Video', () => {
 
     it('MM-T2258 YouTube Video play, collapse', () => {
         // # Post message
-        cy.postMessage('https://www.youtube.com/watch?v=gLNmtUEvI5A');
+        const youtubeUrl = 'https://www.youtube.com/watch?v=gLNmtUEvI5A';
+        cy.postMessage(youtubeUrl);
+        cy.uiWaitUntilMessagePostedIncludes(youtubeUrl);
         cy.getLastPost().within(() => {
             // # Click play button
-            cy.get('.play-button').click();
+            cy.get('.play-button', {timeout: TIMEOUTS.TEN_SEC}).click();
 
             // * Video should be loaded in the iframe
             cy.get('.video-div > iframe').should('exist');