chore: Improve graceful server shutdown (#4625)

* chore: Improve graceful server shutdown

* Replace node timers with custom promise timeout

server/utils/timers.ts

@@ -0,0 +1,8 @@
+/**
+ * Returns a promise that resolves after a specified number of milliseconds.
+ *
+ * @param [delay=1] The number of milliseconds to wait before fulfilling the promise.
+ */
+export function timeout(ms = 1) {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}