chore: change repo URL

test/packages/install-script-example/package.json

@@ -10,6 +10,6 @@
   "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "https://github.com/rstacruz/pnpm/tree/master/test/packages/install-script-example"
+    "url": "https://github.com/pnpm/pnpm/tree/master/test/packages/install-script-example"
   }
 }