Update electricity impact factors

[demeringo]

Problem

The documentation states that for usage impacts, the PE factor comes from IRENA (2016).
API doc link https://doc.api.boavizta.org/Explanations/usage/elec_factors/

However the wikipedia article states that data is from 2021 (which I also remember from our past exchanges).
https://en.wikipedia.org/wiki/List_of_countries_by_renewable_electricity_production

We are likely serving slightly outdated factors.

Solution

Short term:

• update factors with latest data avaialble (likely 2021)

Long term:

• discuss a way we could ease it or automate it.

Alternatives

Workaround 1: use a custom version of API with updated factors

Workaround 2: pass directly custom factors when calling the API

Additional context or elements

• Factors are defined in boaviztapi/boaviztapi/data/crowdsourcing/electrical_mix.csv

• Adrien mentions that the data was likely extracted from the source DB using SQL query that mentions 2016.

Linked issue is

#117