llvmlite 0.43.0 Checklist

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llvmlite 0.43.0

• Cherry-pick items from the 0.43.0 milestone into a PR targeting the release branch. (no rc bugs)
• Update CHANGE_LOG on PR.
  • update CHANGE_LOG and release date for 0.43.0 final #1059
• Have PR reviewed and merged.
• Test HEAD of release branch on buildfarm (pre-tag testing):
  • conda package build and test. Build llvmlite_287
  • wheel build Build llvmlite_wheel_67
• Annotated tag v0.43.0 on release branch (llvmlite tags DO have a v prefix). https://github.com/numba/llvmlite/releases/tag/v0.43.0
• Build and upload conda packages on buildfarm (check "upload"). llvmlite_288
• Build wheels and sdist on the buildfarm (check "upload"). llvmlite_wheel_68
• Verify packages uploaded to Anaconda Cloud and copy to numba/label/main.
• Upload wheels and sdist to PyPI. (upload from ci_artifacts).
• Verify wheels for all platforms arrived on PyPi.
• Verify ReadTheDocs build.
• Send RC/FINAL announcement email / post announcement to discourse group.
• Post link to Twitter and Mastodon and anywhere else that is appropriate.

Post release

• Cherry-pick changes to the CHANGE_LOG to main. (FINAL ONLY) port changelog for 0.43.0 to main #1060
• Clean up ci_artifacts by moving files to subdirectories
• Update release checklist template with any additional bullet points that
  may have arisen during the release.
• Ping Anaconda Distro team to trigger a build for defaults (FINAL ONLY).
• Close milestone (and then close this release issue).

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it's shipped 🚢