Replace x/crypto package by ProtonMail/go-crypto to support ed25519 OpenPGP keys
Add support for mail setups that don't support TLS or Auth
auth: force webhooks to read-only
auth: fix /query/api-meta.json route
This route does not need authentication.
Add legacy webhooks worker implementation
Expand context for work queues
Drop leftover references to gql.sr.ht
auth/middleware: fix printf suspension params
Import GQL server interfaces from gql.sr.ht
Overhaul crypto module
Part 1 of merging gql.sr.ht with core-go
Add crypto module with depessimised webhook signing from gitsrht-update-hook