Release v0.3.0

[ekatef]

Closes Milestone v0.3.0

Changes proposed in this Pull Request

Release new version v0.3.3

Checklist

• [x] I consent to the release of this PR's code under the AGPLv3 license and non-code contributions under CC0-1.0 and CC-BY-4.0.
• [x] 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 doc/requirements.txt.
• [ ] Changes in configuration options are added in all of config.default.yaml and config.tutorial.yaml.
• [ ] Add a test config or line additions to test/ (note tests are changing the config.tutorial.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.

[ekatef]

Have updated environment.fixed.yaml on Debian Linux.

During local testing on Debian, some troubles appeared when reading a hydrobasins shape file, while the workflow runs properly without hydro. The reason of troubles may be that the hydrobasins file was copied from a machine with a different operation system. Just for reference, the keyword for the error is SHAPE_RESTORE_SHX. I'll investigate it in more details track the issue, in case it's reproducible.

Workflow testing on Mac was successful, but the updated environment.fixed.yaml looks very different as compared with Debian. Available in this branch: https://github.com/ekatef/pypsa-earth/compare/release-v0.3.0-backup

[ekatef]

@davide-f As far as I understand, it's ready.

[davide-f]

Fantastic job @ekatef :D Merging :)

Many thanks for the support! With this, you have also learned how to release a new version :D Fantastic!!! I remember it was tricky at the beginning, but after the first time it is easy :)