sbmlteam/python-libsbml: Release 5.21.2

This release contains a number of fixes with the interconversion between markdown and html. As well as a number of bug fixes. This release is primarily made, to support python 3.15.

What's Changed

• Allow building zlib and libsbml at the same time. by @luciansmith in https://github.com/sbmlteam/libsbml/pull/474
• Allow a model history parent to be set. by @luciansmith in https://github.com/sbmlteam/libsbml/pull/475
• Pull develop into branch by @luciansmith in https://github.com/sbmlteam/libsbml/pull/478
• Remove warnings by @luciansmith in https://github.com/sbmlteam/libsbml/pull/477
• Only call loadPlugins once in constructors. by @luciansmith in https://github.com/sbmlteam/libsbml/pull/469
• Use python 3.11 instead of 3.8 to build on manylinux by @fbergmann in https://github.com/sbmlteam/libsbml/pull/479
• Add main option to converters by @fbergmann in https://github.com/sbmlteam/libsbml/pull/480
• Fix memory leak in GeneProductAssociation::getFbcAssociationFor. by @luciansmith in https://github.com/sbmlteam/libsbml/pull/482
• log species reference with hOSU and initialConcentration as implicit reference by @fbergmann in https://github.com/sbmlteam/libsbml/pull/484
• Fix ASTNode's copyNode for constants. by @luciansmith in https://github.com/sbmlteam/libsbml/pull/485
• Fix table round-tripping. by @luciansmith in https://github.com/sbmlteam/libsbml/pull/486
• • bump version by @fbergmann in https://github.com/sbmlteam/libsbml/pull/487

Full Changelog: https://github.com/sbmlteam/libsbml/compare/v5.21.1...v5.21.2