test: add type module, then NodeNext is happy

Author: hi-ogawa

test/dts-fixture/package.json

@@ -1,5 +1,6 @@
 {
   "name": "@vitest/test-dts-fixture",
+  "type": "module",
   "private": true,
   "scripts": {
     "build": "rm -rf dist && tsc -p tsconfig.json",

test/dts-fixture/tsconfig.check.json

@@ -1,12 +1,8 @@
 {
   "compilerOptions": {
     "target": "ESNext",
-    // TODO: type check fails with NodeNext. probably we should fix this.
-    //  ../../packages/vitest/index.d.cts:1:15 - error TS1479: The current file is a CommonJS module whose imports will produce 'require' calls; however, the referenced file is an ECMAScript module and cannot be imported with 'require'. Consider writing a dynamic 'import("./dist/index.js")' call instead.
-    //  1 export * from './dist/index.js'
-    //                  ~~~~~~~~~~~~~~~~~
-    "module": "ESNext",
-    "moduleResolution": "Bundler",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
     "types": [],
     "strict": true,
     "noEmit": true,