Release 0.3.0

What's Changed

• Ci/add python 39 310 311 to GitHub workflows by @bpshaver in #58
• Subtle changes for better error handling and bug fix on missing elements by @haz in #56
• Development maintainance by @marcofavorito in #60
• docs: Enable syntax highlight by @marcofavorito in #64
• Update copyright notice and scripts/check_copyright.py script by @marcofavorito in #62
• chore(deps): bump requests from 2.30.0 to 2.31.0 by @dependabot in #67
• Fix/tostring by @francescofuggitti in #69
• Forall fix by @aefrank in #71

New Contributors

• @bpshaver made their first contribution in #58
• @aefrank made their first contribution in #71

Full Changelog: v0.2.0...v0.3.0