(#30) Fix httpbin Deployment selector match labels

Without this patch the deployment fails with:

```
Deployment/istio-ingress/httpbin dry-run failed, reason: Invalid:
Deployment.apps "httpbin" is invalid: spec.template.metadata.labels:
Invalid value:
map[string]string{"app.kubernetes.io/component":"httpbin",
"app.kubernetes.io/instance":"prod-mesh-httpbin",
"app.kubernetes.io/name":"mesh", "app .kubernetes.io/part-of":"prod",
"holos.run/component.name":"httpbin", "holos.run/project.name":"mesh",
"holos.run/stage.name":"prod", "sidecar.istio.io/inject":"true"}:
`selector` does not match template `labels`
```

docs/examples/platforms/reference/clusters/workload/cloud/mesh/istio/httpbin/httpbin.cue

@@ -23,6 +23,7 @@ let MatchLabels = {app: Name} & #SelectorLabels
 			}
 			spec: selector: matchLabels: MatchLabels
 			spec: template: {
+				metadata: labels: MatchLabels
 				metadata: labels: #CommonLabels
 				metadata: labels: #IstioSidecar
 				spec: securityContext: seccompProfile: type: "RuntimeDefault"

pkg/version/embedded/patch

@@ -1 +1 @@
-5
+6