chore: switch tsup config to typescript (#9057)

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/rest/tsup.config.ts

@@ -0,0 +1,6 @@
+import { esbuildPluginVersionInjector } from 'esbuild-plugin-version-injector';
+import { createTsupConfig } from '../../tsup.config.js';
+
+export default createTsupConfig({
+	esbuildPlugins: [esbuildPluginVersionInjector()],
+});