Revert "Revert "chore(build): remove code property from generated components.json""

[joshblack]

Reverts primer/react#7262

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Latest commit: 1b9f9d781d3d05e32252cb192a19b138ed58a354

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[github-actions[bot]]

:wave: Hi, this pull request contains changes to the source code that github/github-ui depends on. If you are GitHub staff, test these changes with github/github-ui using the integration workflow. Or, apply the integration-tests: skipped manually label to skip these checks.