Fix DST readings

[alvaro-octal]

The day for spring DST change (when the day has 23 hours), currently returns reading for hours from 0 to 22:

[
     { hour: 0, consumption: 123 },
     { hour: 1, consumption: 213 },
     { hour: 2, consumption: 312 },
     { hour: 3, consumption: 231 },
     [...]
     { hour: 22, consumption: 321 }
]

But should return from 0 to 1 and from 3 to 23 (because the hour 2 does not exists), in order to match the with esios format

[
     { hour: 0, consumption: 123 },
     { hour: 1, consumption: 213 },
     { hour: 3, consumption: 231 },
     [...]
     { hour: 23, consumption: 321 }
]