fix(rspack-plugin): correct the dist types directory (#741)

Author: chenjiahan

packages/rspack-plugin/tsconfig.json

@@ -2,9 +2,10 @@
   "extends": "@rsdoctor/tsconfig/base",
   "compilerOptions": {
     "baseUrl": ".",
-    "outDir": "./dist"
+    "outDir": "./dist",
+    "rootDir": "src"
   },
-  "include": ["src", "tests"],
+  "include": ["src"],
   "exclude": ["**/node_modules"],
   "references": [
     {