stackspout: use proper metadata

basic/apps/stackspout/vikunja-release.yaml

@@ -7,7 +7,7 @@ spec:
   releaseName: vikunja
   chart:
     spec:
-      chart: k8s-at-home/vikunja
+      chart: vikunja
       version: 5.5.3
       sourceRef:
         kind: HelmRepository

basic/clusters/production/infrastructure-kustomization.yaml

 apiVersion: kustomize.toolkit.fluxcd.io/v1beta1
 kind: Kustomization
 metadata:
-  name: example-infrastructure
+  name: sources
   namespace: stackspout
 spec:
   interval: 10m