feat(ci): CircleCI migration to Github Actions (#2516)

* Deprecated trigger-desktop-nightly repo from gitlab
* Migrated Nightly builds URLs from CircleCI to S3
* Full CI/CD is handled by Github Actions

---------

Co-authored-by: Tasos Boulis <tboulis@hotmail.com>
Co-authored-by: Mattermost Build <build@mattermost.com>

src/main/windows/windowManager.test.js

@@ -234,6 +234,9 @@ describe('main/windows/windowManager', () => {
         afterEach(() => {
             jest.runAllTimers();
             jest.resetAllMocks();
+            jest.runOnlyPendingTimers();
+            jest.clearAllTimers();
+            jest.useRealTimers();
         });
 
         it('should update loading screen and team dropdown bounds', () => {
@@ -670,6 +673,12 @@ describe('main/windows/windowManager', () => {
             Config.teams = [];
         });
 
+        afterAll(() => {
+            jest.runOnlyPendingTimers();
+            jest.clearAllTimers();
+            jest.useRealTimers();
+        });
+
         it('should do nothing if cannot find the server', () => {
             windowManager.switchServer('server-3');
             expect(getTabViewName).not.toBeCalled();