fix(timepicker): flaky failed tests

Author: dhutaryan

projects/mat-timepicker/src/lib/timepicker.spec.ts

@@ -1809,7 +1809,7 @@ describe('MatTimepicker', () => {
         tick();
         flush();
 
-        expect(getDialCell(getMinuteCellIndex(30)).classList).toContain(
+        expect(getDialCell(getMinuteCellIndex(25)).classList).toContain(
           'mat-clock-dial-cell-active',
         );
       }));