chore(deps): bump apscheduler in /examples/using-apscheduler

Bumps [apscheduler](https://github.com/agronholm/apscheduler) from 3.10.1 to 3.10.4.
- [Release notes](https://github.com/agronholm/apscheduler/releases)
- [Changelog](https://github.com/agronholm/apscheduler/blob/3.10.4/docs/versionhistory.rst)
- [Commits](agronholm/apscheduler@3.10.1...3.10.4)

---
updated-dependencies:
- dependency-name: apscheduler
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

examples/using-apscheduler/requirements.txt

@@ -1,2 +1,2 @@
-APScheduler==3.10.1
+APScheduler==3.10.4
 redis