Add Fischer-Tropsch efficiency in capital cost calculation

[energyLS]

Changes proposed in this Pull Request

Fix capital_cost of Fischer-Tropsch. Since the investment parameter of technology data relates to EUR/MW_FT the efficiency is used to convert from EUR/MW_FT/a to EUR/MW_H2/a (https://github.com/PyPSA/technology-data/blob/8bb05d94ac603c463683b5ae12acf438fb962b4f/outputs/costs_2030.csv#L97).

This is is in line with PyPSA-Eur
https://github.com/PyPSA/pypsa-eur/blob/f35ecbe4a01f220210c3a295ca93d805f5633824/scripts/prepare_sector_network.py#L2718C9-L2719C68

Checklist

• I tested my contribution locally and it seems to work fine.
• Code and workflow changes are sufficiently documented.
• Newly introduced dependencies are added to envs/environment.yaml and envs/environment.docs.yaml.
• Changes in configuration options are added in all of config.default.yaml, config.tutorial.yaml, and test/config.test1.yaml.
• Changes in configuration options are also documented in doc/configtables/*.csv and line references are adjusted in doc/configuration.rst and doc/tutorial.rst.
• A note for the release notes doc/release_notes.rst is amended in the format of previous release notes, including reference to the requested PR.

[energyLS]

Mac CI successful, please review and merge @hazemakhalek :)