infra: Always pull latest images (#265)

The Always pull policy is needed for the latest tag to force Kubernetes
to pull the newest image on every pod creation, even if an image with
that tag already exists locally. Without this, pods might use outdated
cached versions since the latest tag is mutable and can point to
different images over time.

Author: domdomegg

deploy/pkg/k8s/registry.go

@@ -62,8 +62,9 @@ func DeployMCPRegistry(ctx *pulumi.Context, cluster *providers.ProviderInfo, env
 				Spec: &corev1.PodSpecArgs{
 					Containers: corev1.ContainerArray{
 						&corev1.ContainerArgs{
-							Name:  pulumi.String("mcp-registry"),
-							Image: pulumi.String("ghcr.io/modelcontextprotocol/registry:latest"),
+							Name:            pulumi.String("mcp-registry"),
+							Image:           pulumi.String("ghcr.io/modelcontextprotocol/registry:latest"),
+							ImagePullPolicy: pulumi.String("Always"),
 							Ports: corev1.ContainerPortArray{
 								&corev1.ContainerPortArgs{
 									ContainerPort: pulumi.Int(8080),