Fix type checks

Author: timfish

packages/integration-tests-next/fixtures/rolldown/errorhandling.config.ts

@@ -2,7 +2,7 @@ import { sentryRollupPlugin } from "@sentry/rollup-plugin";
 import { defineConfig } from "rolldown";
 import { getErrorHandlingConfig } from "../configs/errorhandling.config.js";
 
-const FAKE_SENTRY_PORT = process.env.FAKE_SENTRY_PORT || "9876";
+const FAKE_SENTRY_PORT = process.env["FAKE_SENTRY_PORT"] || "9876";
 
 export default defineConfig({
   input: "src/basic.js",