[MM-61595]: Removed the unnecessary dialog text from toggle button's aria-label property (#29595)

e2e-tests/cypress/tests/integration/channels/keyboard_shortcuts/system_message_not_open_for_edit_spec.js

@@ -26,7 +26,7 @@ describe('Keyboard Shortcuts', () => {
         cy.postMessage(message);
 
         // # Open the edit the channel header modal
-        cy.get('[aria-label="Set header dialog"]').click();
+        cy.get('[aria-label="Set header"]').click();
 
         // * Verify modal is open
         cy.findByRole('dialog', {name: 'Edit Header for Off-Topic'}).within(() => {