Describe the enhancement
Please add timezones to cron schedules.

Code Snippet

name: Timed action
on:
  schedule:
    - cron: '01 20 * * 1-5'
    - timezone: 'Australia/Melbourne'

Additional information
Especially when the schedule is only supposed to run on certain days of the week this gets very confusing with UTC. Daylight savings does not help much either here.