Electricitymap-contrib: Run price parsers in update_state.py

[lorrieq]

Noticed this was not possible when testing the DE-AT-LU bidding zone price parser.

As well as running the production and exchange parsers, also run the price parsers to add price data to the local state.

Then display these prices when running locally.

[systemcatch]

@lorrieq that would be a nice addition to the script. Would you like to implement it?

[lorrieq]

Yes, I'll get started

[systemcatch]

Any progress here @lorrieq?

[lorrieq]

Hey, apologies but I am yet to properly look at it. I'll spend some time on it this weekend and update you.

[corradio]

@lorrieq were you able to do it? Else I'll simply un-assign you.

[corradio]

Closing due to inactivity.