Can't be used with dynamic imports due to process.env access

I'm trying to use validated-changeset as a demo for some REPL stuff, but am running into `process is not defined` errors, which makes sense, considering I'm `await import`ing from a browser.

See https://cdn.jsdelivr.net/npm/validated-changeset/+esm

is there a browser build available?
I see there in main and module here: https://github.com/validated-changeset/validated-changeset/blob/main/package.json#L6
just looks like browser might be missing?

Start with package.json, especially the main and module fields, and reproduce the failure by dynamically importing the jsDelivr +esm URL in a browser. Determine how the package should expose a browser-compatible build; done means the same dynamic import works without a process-is-not-defined error.

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