## Why
artifactapi `v3.7.4` images are built and pushed; au-syd1 is on `v3.7.3`. This rolls forward to ship the terraform provider registry.
## Changes
- `api-deployment`: `artifactapi` `v3.7.3` → `v3.7.4`
- `ui-deployment`: `artifactapi-ui` `v3.7.3` → `v3.7.4`
## What's new in v3.7.4
- Local terraform repos are now a real provider registry: `/.well-known/terraform.json` + `providers.v1` versions/download with GPG-signed SHA256SUMS (#102).
- The signing key self-provisions in the DB (`signing_keys` table) — no K8s secret to mount, so no deployment wiring needed.
Once synced, `terraform init` against `source = "artifactapi.k8s.syd1.au.unkin.net/<repo>/<type>"` works.
Reviewed-on: #218
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
unkinben
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