tweak naming

packages/common/src/util/sleep.ts

@@ -6,6 +6,6 @@
  * on failure, and this function will sleep the same amount of time every time
  * the test is retried.  Prefer {@link sleepWithBackoff} instead.
  */
-export default function sleep(timeout: number): Promise<void> {
-  return new Promise((resolve) => setTimeout(resolve, timeout));
+export default function sleep(ms: number): Promise<void> {
+  return new Promise((resolve) => setTimeout(resolve, ms));
 }