feat(argo-cd): Expose cluster's project as a label

Given that Argo CD's ApplicationSet cluster generator allows selecting
clusters using arbitrary labels, it'd be useful for operators to have
the clusters' project available as label to for instance easily deploy
a single application to all the clusters of a given project.

More info: https://github.com/argoproj/argo-helm/discussions/2949

Signed-off-by: Nacho Barrientos <nacho.barrientos@cern.ch>

charts/argo-cd/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: v2.12.4
 kubeVersion: ">=1.25.0-0"
 description: A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 7.6.8
+version: 7.6.9
 home: https://github.com/argoproj/argo-helm
 icon: https://argo-cd.readthedocs.io/en/stable/assets/logo.png
 sources:
@@ -27,4 +27,4 @@ annotations:
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
     - kind: added
-      description: Set affinity in redis secret-init job.
+      description: Add the cluster project as a label.

charts/argo-cd/templates/argocd-configs/cluster-secrets.yaml

@@ -11,6 +11,9 @@ metadata:
       {{- toYaml . | nindent 4 }}
     {{- end }}
     argocd.argoproj.io/secret-type: cluster
+    {{- if $cluster_value.project }}
+    argocd.argoproj.io/project: {{ $cluster_value.project | quote }}
+    {{- end }}
   {{- with $cluster_value.annotations }}
   annotations:
     {{- range $key, $value := . }}