20700: Fix DateAndTimeLeapTest>>testAsMonth          The test used a DateAndTime with an offset of 2 hours, but the compared it to a month on UTC.  This previoiusly worked due to a bug in ignoring the offset when creating a Month.          Modify the test to use an offset of 2 hours.
20700: Fix DateAndTimeLeapTest>>testAsMonth
    
    The test used a DateAndTime with an offset of 2 hours, but the compared it to a month on UTC.  This previoiusly worked due to a bug in ignoring the offset when creating a Month.
    
    Modify the test to use an offset of 2 hours.

estebanlm/pharo,estebanlm/pharo,estebanlm/pharo