Fixing GCal emailing notif and sequential deleting

[leog]

What does this PR do?

Making sure Google Calendar does not send deleted events notifications when deleted by API, as we handle the notification for them. Also, Google Calendar delete was causing problems when using its API in parallel, changing it to be sequential.

Environment: Staging(main branch) / Production

Type of change

• Bug fix (non-breaking change which fixes an issue)

How should this be tested?

Try to cancel a recurring event with lots of instances and you shouldn't see Google sending cancelled notification for each instance nor a 500 error when doing so.

[vercel]

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Name	Status	Preview	Updated
cal	✅ Ready (Inspect)	Visit Preview	Jan 13, 2023 at 2:33PM (UTC)

[PeerRich]

i think some scheduling serivces still send the notification if I am not incorrect

[leog]

i think some scheduling serivces still send the notification if I am not incorrect

This is just to let Google know it shouldn't send notifications for the deleted events through the API, like when we delete all remaining events from a series, because we already send a notification from Cal.

[zomars]

[zomars]

I think is good enough. But is it possible to suppress notifications only in recurring events?

[leog]

I think is good enough. But is it possible to suppress notifications only in recurring events?

@zomars wouldn't we want to also avoid notifications for single events too? Cal already sends a notification for those too

[zomars]

I think is good enough. But is it possible to suppress notifications only in recurring events?

@zomars wouldn't we want to also avoid notifications for single events too? Cal already sends a notification for those too

I don't know, hence the question. But merging for now. 🙏🏽