title: how to run a 3hrs long backend process on firebase function?
body: <p>how to run a 3hrs long backend process in firebase function?</p>
  <p>this process need about 3 hrs to complete but I always get timeout in 1hr.</p>
  <pre><code>exports.resyncpostsdata = FunctionsV2
      .https
      .onRequest( 
          {
              timeoutSeconds: 3600, // 1hr
          },
          async (req:any, res:any) =&gt; {
              await ResyncPostsData(req, res);
          }
  );
  </code></pre>