Alois Spitzbart authored Feb 18, 2023 and Allen Winter committed Feb 18, 2023

Added two files for the holidays of cuba. Based on the dates in [https://bugs.kde.org/show_bug.cgi?id=461282](https://bugs.kde.org/show_bug.cgi?id=461282).

Additional added a parameter in description to get complete output for test.


Here is the output of the tests:

```
QDEBUG : HolidayRegionTest::testRegions()
QDEBUG : HolidayRegionTest::testRegions() This regionCode =  "cu_en"
QDEBUG : HolidayRegionTest::testRegions() Is valid? =  true
QDEBUG : HolidayRegionTest::testRegions() Country code =  "CU"
QDEBUG : HolidayRegionTest::testRegions() Language code =  "en"
QDEBUG : HolidayRegionTest::testRegions() Name =  "Cuba"
QDEBUG : HolidayRegionTest::testRegions() Description =  "State holiday file for Cuba"
QDEBUG : HolidayRegionTest::testRegions()
QDEBUG : HolidayRegionTest::testRegions() Parsing region =  "cu_en"  year =  2023  calendar =  "gregorian"
QDEBUG : HolidayRegionTest::testRegions() Date = "2023-01-01" Duration = 1 Name = "Liberation Day      " Category = ("public")
QDEBUG...