Release checklist

• Check outstanding issues on JIRA and Github.
• Check latest documentation looks fine.
• Create a release branch.
  • Change current development version in CHANGELOG.rst to stable version.
• Check if the address sanitizer does not find any problems using tox -e asan
• Merge the release branch into main.
• Created an annotated tag with the stable version number. Include changes from CHANGELOG.rst.
• Push tag to remote. This triggers the wheel/sdist build on github CI.
• merge main branch back into develop.
• Build the new tag on readthedocs. Only build the last patch version of each minor version. So 1.1.1 and 1.2.0 but not 1.1.0, 1.1.1 and 1.2.0.
• Create a new release on github.
• Update the package on conda-forge.