Fix the upgrade from v8.8 to 9.2 of hydro power matrices [ANT-2742]

[guilpier-code]

Fixes problem described in issue ANT-2742

This fix is a quick fix : code could be cleaner.
Some refactoring could make code more readable when reading it again in a few months / years.
In particular, we could create an interface for reading and saving this data (hydro power) and create 2 classes implementing this interface and encapsulating each case (read/write daily or hourly)

[flomnes]

LGTM. enums don't need to be passed by reference

enum Color
{
    Red, Blue
};
void printColor(Color c);

Also, formatting

[guilpier-code]

LGTM. enums don't need to be passed by reference

enum Color
{
    Red, Blue
};
void printColor(Color c);

Also, formatting

Done

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
13.8% Coverage on New Code
0.0% Duplication on New Code

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