chore(*): Update test with latest changes.

Author: skrustev

projects/igniteui-angular/src/lib/date-range-picker/date-range-picker.component.spec.ts

@@ -2012,7 +2012,7 @@ describe('IgxDateRangePicker', () => {
                 dateRange.weekStart = WEEKDAYS.FRIDAY;
                 fixture.detectChanges();
 
-                expect(dateRange.locale).toEqual('frrr');
+                expect(dateRange.locale).toEqual('en-US');
                 expect(dateRange.weekStart).toEqual(WEEKDAYS.FRIDAY);
             }));