update jest to v30 (#3815)

e2e:
- needed window.close(), otherwise the objects are not destroyed
- add missing `await` in clock test
- set maxListeners for all tests

remaining todo (comes with another PR if I find the problem):
- calendar e2e is now the only test which still needs `--forceExit`

tests/e2e/modules/calendar_spec.js

@@ -119,7 +119,6 @@ describe("Calendar module", () => {
 		});
 	});
 
-	process.setMaxListeners(0);
 	for (let i = -12; i < 12; i++) {
 		describe("Recurring event per timezone", () => {
 			beforeAll(async () => {