add arm64 to build platform

[progress44]

Fixes #2191

Changes:

Updates github workflow with buildkit v2 action and enables platforms arm64 along with the current amd64

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• has no linting errors (npm run lint)
• has no test errors (npm run test)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123

[welcome]

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[raclim]

Thanks so much for working on this! :)