Add the TemplateConfig template to the test app helm chart.

Forgot it in the previous commit.

charts/viking-test-app/templates/templateconfig.yaml

+{{ if .Values.templates -}}
+apiVersion: "ingress.varnish-cache.org/v1alpha1"
+kind: TemplateConfig
+metadata:
+  name: {{ include "viking-ingress.fullname" . }}-tmplcfg
+  labels:
+    app.kubernetes.io/name: {{ .Values.ingress.name }}
+    app.kubernetes.io/component: templateConfig
+    {{- include "viking-ingress.labels" . | nindent 4 }}
+spec:
+  {{ toYaml .Values.templates | nindent 2 }}
+{{ end -}}