Send SDK headers based on this package

[razor-x]

Since the versions are all pinned, this lib should override the default sdk headers sent via https://github.com/seamapi/javascript-http/blob/7d444b9f2d1cf36cf43645cb1c813151d4d56593/src/lib/seam/connect/parse-options.ts#L17C14-L20

Do do this, the version first needs to be injected using the prepack script, e.g, https://github.com/seamapi/javascript-http/blob/7d444b9f2d1cf36cf43645cb1c813151d4d56593/prepack.ts#L33