fix(parsers):Remove geothermal from NL parser

[annaib00]

Issue

Fix to issue #7386. Removing geothermal (type 9 in https://ned.nl/nl/handleiding-api) production from NL parser, as NL does not have any geothermal production. It is not added to unknown as we are already reporting more production than Eurostat and it could be geothermal heat production.

Description

Preview

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]

Changes look good!

However do we have a plan for removing the geothermal data from the database?

It will not get overwritten as this will now return null values (not 0).

[annaib00]

Ah, okay! No, we do not have a plan for that currently. Do you know if there are any nice way of doing this? Or should I just manually add a Geothermal value = 0 production i the parser?

[VIKTORVAV99]

Ah, okay! No, we do not have a plan for that currently. Do you know if there are any nice way of doing this? Or should I just manually add a Geothermal value = 0 production i the parser?

I'll leave this up to @FelixDQ to decide, we have in the past been hesitant to hardcode values as it increases maintenance and risks being wrong in the future. But on the other hand I don't think the Netherlands will add geothermal electricity generation.

Otherwise you'll have to write a database migration to remove them.

[annaib00]

Okay, @FelixDQ is on vacation this week so I will look more into it when he is back :)