feat: add artifactapi3 application

Deploy artifactapi v3 with separate API and UI deployments, CNPG
PostgreSQL cluster with pooler, and Redis. Routes traffic via
Gateway API for artifactapi.main.unkin.net and
artifactapi3.k8s.syd1.au.unkin.net.

apps/base/artifactapi3/redis-deployment.yaml

@@ -0,0 +1,36 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: redis
+  namespace: artifactapi3
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+    spec:
+      containers:
+        - name: redis
+          image: redis:7-alpine
+          command:
+            - redis-server
+            - --save
+            - "20"
+            - "1"
+          ports:
+            - containerPort: 6379
+              name: redis
+              protocol: TCP
+          resources:
+            limits:
+              cpu: 250m
+              memory: 256Mi
+            requests:
+              cpu: 50m
+              memory: 64Mi
+      restartPolicy: Always