chore(build): disable tsup minification & add "use strict"; banner to CJS bundles (#7725)

* chore(build): disable tsup minification

* chore(build): add `"use strict";` to CJS bundles

packages/rest/tsup.config.ts

@@ -5,9 +5,16 @@ export const tsup: Options = {
 	dts: false,
 	entryPoints: ['src/index.ts'],
 	format: ['esm', 'cjs'],
-	minify: true,
+	minify: false,
 	keepNames: true,
 	skipNodeModulesBundle: true,
 	sourcemap: true,
 	target: 'es2021',
+	esbuildOptions: (options, context) => {
+		if (context.format === 'cjs') {
+			options.banner = {
+				js: '"use strict";',
+			};
+		}
+	},
 };