Remove node from sleep util (#2499)

## Checklist

- [/] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [/] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)
- [/] I have not broken the cheatsheet

---------

Co-authored-by: Pokey Rule <755842+pokey@users.noreply.github.com>

Author: AndreasArvidsson

packages/common/src/util/sleep.ts

@@ -1,5 +1,3 @@
-import { promisify } from "util";
-
 /**
  * Sleep function that returns a promise that resolves when the sleep is
  * complete.
@@ -8,6 +6,6 @@ import { promisify } from "util";
  * on failure, and this function will sleep the same amount of time every time
  * the test is retried.  Prefer {@link sleepWithBackoff} instead.
  */
-const sleep = promisify(setTimeout);
-
-export default sleep;
+export default function sleep(ms: number): Promise<void> {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}