chore(alerts): move weekly summary Monday -> Saturday

[vartec]

Moving weekly summary schedule as agreed in ClickHouse capacity DACI action items.

I've validated that the report dates in title are generated dynamically, with end date being floor_to_utc_day(timezone.now()) and start date being end - 7 days.

[wedamija]

This is overridden in getsentry so you'll need to make the change there https://github.com/getsentry/getsentry/blob/04274a3d630398a6e70c378765acf0bc4d3d92f0/getsentry/conf/settings/defaults.py#L823-L826

[vartec]

This is overridden in getsentry so you'll need to make the change there https://github.com/getsentry/getsentry/blob/04274a3d630398a6e70c378765acf0bc4d3d92f0/getsentry/conf/settings/defaults.py#L823-L826

Thank you!
I've added it there https://github.com/getsentry/getsentry/pull/13666

[wedamija]

Not sure if there's much value changing it here but you can merge it if you like

[vartec]

Not sure if there's much value changing it here but you can merge it if you like

Consistency mainly — if someone looks it up here, like I did, they get the day we actually run these on.

[G-Rath]

I'm on mobile so might have missed something, but:

1. I came here after getting two of these on a Saturday, assuming it was a bug
2. I liked getting these on Mondays
3. https://docs.sentry.io/product/alerts/notifications/ still says weekly alerts will be sent on a Monday.

I'm not really expecting that this will get reverted or made customizable any time, but it could have been nice to get at least a heads up about the change 😅

[stepech]

I have to agree with @G-Rath here, is there any way for us to customize this? I came here also looking for some issue and ready to report it as bug.

[ArnaudBarre]

Coming here for the same issue. I think I can deal with first day of the chart being Saturday, but receiving emails on Saturday is a no go and I will probably disable the feature if it's not customizable, which is sad because this is great to have a weekly summary of the volume of issues.

[stepech]

We've managed to customize it by rewriting "saturday" to "monday" in /usr/local/lib/python3.11/site-packages/sentry/conf/server.py file as part of the enhance-image.sh script.