Consider not pinging issues on the weekend

[thatch]

For example google/makerspace-auth#47 -- it's existed in this state for years, and I get github notifications on my personal devices. This is not kind to work-life balance, if this is intended for work projects...

[ethan7g]

This would be a nice org + repo config option.
Weekends could be configured sort of like this:

optOutDays:
- issue: false
  pr: false
  days:
    - 0
    - 6
  timezone: pst

See Weekday.
Limit the config to opting out three days per week or so.

[ethan7g]

As discussed in today's bi-weekly meeting, it might be nice to take some inspiration from the way Dependabot's config handles skipping days (see relevant Dependabot docs here).

Here is what that might look like in an organization's allstar.yaml config:

optConfig:
  optOutStrategy: true
  optSchedule:
    timezone: America/Los_Angeles
    actions:
      issue: false
      fix: true
    days:
      - saturday
      - sunday

Fix will default to true.

It isn't exactly the same, but it is familiar. We could also automatically support the Dependabot configuration by looking at each repo's .github/dependabot.yml to find the schedule information there, inverting the days listed to get skipDays.

Be sure to limit skipDays to 3 days or so so that it isn't used as a tricky opt-out strategy.