feat(ch): update CH parser with 2023 and 2024 data

[amv213]

Description

I noticed that the hard-coded solar capacity data used by the CH parser might be a bit out of date. Similarly to what was done in #5529, this PR adds values for 2023 and 2024 and updates the existing values based on the latest data that I found available on the dashboard linked to in the code comments.

P.S. dashboards / data would also be available on the same website for hydro, wind, and biomass capacities. Is this something we would be interested in integrating too?

• https://www.uvek-gis.admin.ch/BFE/storymaps/EE_Elektrizitaetsproduktionsanlagen/data/wind.csv
• https://www.uvek-gis.admin.ch/BFE/storymaps/EE_Elektrizitaetsproduktionsanlagen/data/biomass.csv
• https://www.uvek-gis.admin.ch/BFE/storymaps/EE_Elektrizitaetsproduktionsanlagen/data/water.csv

And if it can be useful, the data that powers the pie-chart showing the current-year capacities is here:

• https://www.uvek-gis.admin.ch/BFE/storymaps/EE_Elektrizitaetsproduktionsanlagen/data/daten_elektrizitaetsproduktionsanlagen.csv

What's nice is that it includes capacities for sources (e.g. nuclear) that don't otherwise have their own dashboard, but we cannot get any historical data beyond the current year

Double check

• I have tested my parser changes locally with poetry run test_parser "zone_key"
• I have run pnpx prettier@2 --write . and poetry run format in the top level directory to format my changes.

[VIKTORVAV99]

Sorry about taking a while to review this, we found a bug in the logic related to the capacities that #6703 should temporarily fix.

I will be taking some extra care when reviewing this so we don't reintroduce the error while we are looking for a more permanent fix but that means it can take a bit longer to be reviewed.

[VIKTORVAV99]

Since this returns floats instead of int's it should work without issue with the backend, however there is a merge conflict which needs to be resolved.

Once that is sorted I'll I'd be happy to merge this :)