chore: bump artifactapi to v3.7.5 (#231)

## Why

Roll out artifactapi `v3.7.5`, which ships the local docker registry (artifactapi#103): local `docker` repos now serve the Docker Registry HTTP API V2 for push and pull.

## Changes

- `apps/base/artifactapi/api-deployment.yaml`: `artifactapi` image `v3.7.4` → `v3.7.5`
- `apps/base/artifactapi/ui-deployment.yaml`: `artifactapi-ui` image `v3.7.4` → `v3.7.5`

## Heads-up (follow-up needed)

The API HPA runs `minReplicas: 2`. Local-docker **chunked** blob uploads keep the upload session in-memory per replica, so a real `docker push` (POST → PATCH → PUT across replicas, no session affinity) can intermittently 404 with `BLOB_UPLOAD_UNKNOWN`. Monolithic pushes are unaffected. Recommend a follow-up to make upload sessions replica-independent (S3-backed) or add session affinity for `/v2/*/blobs/uploads/` before relying on pushes in anger.

Reviewed-on: #231
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>

apps/base/artifactapi/api-deployment.yaml

@@ -35,7 +35,7 @@ spec:
               mountPath: /combined-certs
       containers:
         - name: api
-          image: git.unkin.net/unkin/artifactapi:v3.7.4
+          image: git.unkin.net/unkin/artifactapi:v3.7.5
           imagePullPolicy: IfNotPresent
           ports:
             - containerPort: 8000

apps/base/artifactapi/ui-deployment.yaml

@@ -22,7 +22,7 @@ spec:
       automountServiceAccountToken: true
       containers:
         - name: ui
-          image: git.unkin.net/unkin/artifactapi-ui:v3.7.4
+          image: git.unkin.net/unkin/artifactapi-ui:v3.7.5
           imagePullPolicy: IfNotPresent
           ports:
             - containerPort: 80