Demote unstable tests (#29250)

* [skip ci] Demote unstable tests
* [skip ci] Further demotions, fix artifact jumbling

e2e-tests/cypress/tests/integration/channels/bot_accounts/display_name_spec.ts

@@ -46,7 +46,7 @@ describe('Bot display name', () => {
         });
     });
 
-    it('MM-T1813 Display name for bots stays current', () => {
+    it.skip('MM-T1813 Display name for bots stays current', () => {
         cy.makeClient({user: otherSysadmin}).then((client) => {
             // # Create a bot and get bot user id
             cy.apiCreateBot().then(({bot}) => {

e2e-tests/cypress/tests/integration/channels/bot_accounts/managing_bot_accounts_not_cloud_spec.ts

@@ -80,7 +80,7 @@ describe('Managing bot accounts', () => {
         });
     });
 
-    it('MM-T1853 Bots managed plugins can be created when Enable Bot Account Creation is set to false', () => {
+    it.skip('MM-T1853 Bots managed plugins can be created when Enable Bot Account Creation is set to false', () => {
         // # Upload and enable "matterpoll" plugin
         cy.apiUploadAndEnablePlugin(matterpollPlugin);