feat: disentangle data/versions.csv using data/tyndp_versions.csv

[tgilon]

Closes ##773.

Changes proposed in this Pull Request

This PR suggests disentangling the data/versions.csv file by introducing data/tyndp_versions.csv. All the TYNDP-specific version entries, as well as the tyndp-archive entries, are now tracked in this dedicated file.

Follow-up of #787, builds on original PR PyPSA#2016.

Tasks

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Notes

Checklist

Required:

• Security scans show no high-severity bugs, critical vulnerabilities, or exposed secrets.
• Changes are tested locally and behave as expected.
• Code and workflow changes are documented.
• A release note entry is added to doc/release_notes.md.

If applicable:

• Changes in configuration options are reflected in scripts/lib/validation.
• Changes in configuration options are added to config/test/*.yaml.
• Multiple climate years test passes locally (pixi run -e open-tyndp tyndp-cyears-test).
• For new data sources or versions, these instructions have been followed.
• Open-TYNDP SPDX license header is added to all touched files.
• Module docstrings are added to new Python scripts.
• New rules are documented in the appropriate doc/*.md files.
• Major features are documented in doc/index.md.

[lisazeyen]

Thanks @tgilon for preparing this PR! Looks great, I have two comments concerning the CI and an update of the documentation.

I think the CI is currently failing because the data is not completly sorted in the new tyndp_versions.csv.

Plus I think we should add some more information in the documentation

• doc/sb.md contains a line "To see which datasets support tyndp-archive, check the source column in data/versions.csv." -> should be changed to tyndp_versions.csv
• doc/configuration.md ("data" config section) should also reference new tyndp_versions-csv, this line needs to be replace See the data/versions.csv file for all available datasets and their sources/versions that are supported.
• we could add a reference to the tyndp data version file also here in the docs

[tgilon]

Thanks @tgilon for preparing this PR! Looks great, I have two comments concerning the CI and an update of the documentation.

Thank you @lisazeyen for the review! I've addressed your comments. RTR

[lisazeyen]

@tgilon thanks a lot! LGTM!