dillon1000/react

[rollup] Add support for running prebuild commands (#32592)

Extracting portions of #32416 for easier review.

Adds a new `prebuild` option to allow for a prebuild command to be run
prior to building the bundle.

Co-authored-by: michael faith <[email protected]>
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with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32592).
* __->__ #32592
* #32591
* #32590
* #32589
* #32588

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Co-authored-by: michael faith <[email protected]>