fix(nextjs): missing dep

Author: nirga

openllmetry/getting-started-nextjs.mdx

@@ -86,18 +86,21 @@ module.exports = nextConfig;
 </Tab>
 
 <Tab title="With App Router">
-  Install the `node-loader` package by running the following command in your terminal:
+  Install the following packages by running the following commands in your terminal:
  <CodeGroup>
 ```bash npm
 npm install --save-dev node-loader
+npm i [email protected]
 ```
 
 ```bash pnpm
 pnpm add -D node-loader
+pnpm add [email protected]
 ```
 
 ```bash yarn
 yarn add -D node-loader
+yarn add [email protected]
 ```
 
 </CodeGroup>