Release 0.6.0a0

[bollwyvl]

• merge all outstanding PRs
  • #PR ...
• ensure the versions have been bumped (check with doit)
• ensure HISTORY.ipynb is up-to-date
  • move the new release to the top of the stack
• validate on binder
• validate on ReadTheDocs
• wait for a successful build of main
• download the dist archive and unpack somewhere (maybe a fresh dist)
• create a new release through the GitHub UI
  • paste in the relevant HISTORY.ipynb entries
  • upload the artifacts
• actually upload to pypi.org

  cd dist
  twine upload *.tar.gz *.whl

  • PyPI URL
• postmortem
  • handle conda-forge feedstock tasks
    • https://github.com/conda-forge/robotframework-jupyterlibrary-feedstock/pull/PULL
    • https://anaconda.org/conda-forge/robotframework-jupyterlibrary/files?version=VERSION
  • validate on binder via simplest-possible gists
  • bump to next development version
  • rebuild locks
    • .github/locks
    • yarn.lock
  • handle linter opinion changes
  • update HISTORY.ipynb
  • update release procedures with lessons learned