add zenodo handler

[pz-max]

Closes #643

Changes proposed in this Pull Request

• Add zenodo_handler.py to upload and update data via API from code.
• Update zenodo links

Enables:

• massive, mutlifile data upload to zenodo via CLI
• automatic link update with update e.g. we could write in future automatically the bundle_config.yaml with the information

Checklist

• I consent to the release of this PR's code under the GPLv3 license and non-code contributions under CC0-1.0 and CC-BY-4.0.
• I tested my contribution locally and it seems to work fine.
• Code and workflow changes are sufficiently documented.
• 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.

[pz-max]

Ready for review

[davide-f]

Looks nice to me!
As a comment on the structure, these "non-workflow scripts" may be placed in a separate folder.
Currently, this is the 2nd or 3rd file that does not belong to the workflow.
It could be good to discuss about that.

The zenodo stuff for the CI is needed soon; the restructuring of the files to separate "non-workflow" scripts may be included in another PR if you prefer.

[pz-max]

Thanks for the review. The files are now in a non_workflow folder.
Feel free to merge if it is ok now @davide-f :)

[davide-f]

Merged :)