test: update rootDir and include paths in tsconfig

Author: chenjiahan

packages/rstack/test/tsconfig.json

@@ -4,13 +4,13 @@
     "allowImportingTsExtensions": true,
     "emitDeclarationOnly": true,
     "composite": true,
-    "rootDir": ".",
+    "rootDir": "..",
     "types": ["node", "rstack/test/globals"],
     "paths": {
       "rstack": ["../src/index.ts"],
       "rstack/test": ["../src/test.ts"],
       "#test-helpers": ["./helpers/index.ts"]
     }
   },
-  "include": ["./**/*.ts"]
+  "include": ["./**/*.ts", "../src"]
 }