Emit pubsub events when new nostr events are received

[boreq]

We want to have a source of nostr events and this service sounds like a good candidate for this for now. We should emit pubsub events whenever we receive or save a nostr event, this needs to be further analysed. @dcadenas created a topic that those events should be sent on. The payload should just be a raw event.

Checklist:

• [x] write code https://github.com/planetary-social/nos-notification-service-go/pull/44
• [ ] update ansible
• [ ] deploy

[boreq]

Prepared a pull request but I will need to prepare it for deployment as we need to configure some things like permissions/credentials etc.

[rabble]

Need coordination between @cooldracula and @boreq to track down deploying

[boreq]

Related:

• https://github.com/planetary-social/cleanstr/issues/4
• https://github.com/planetary-social/cleanstr/issues/2

[boreq]

This is stuck on the following problem:

• we need to get credentials for the notitication service to connect to the pubsub
• we need to add those credentials to ansible somehow

[boreq]

Created this ticket:

• https://github.com/planetary-social/infrastructure/issues/80