feat(observability): Created observability-client stack

Moved vector from core stack to observability-client
Added victoriametrics-k8s-stack to observability-client for easy vmagent
and scraping config

template/stacks/observability-client/vector.yaml

@@ -0,0 +1,29 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: vector
+  namespace: argocd
+  labels:
+    env: dev
+spec:
+  project: default
+  syncPolicy:
+    automated:
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+    retry:
+      limit: -1
+  destination:
+    name: in-cluster
+    namespace: observability
+  sources:
+    - chart: vector
+      repoURL: https://helm.vector.dev
+      targetRevision: 0.43.0
+      helm:
+        valueFiles:
+          - $values/{{{ .Env.CLIENT_REPO_ID }}}/{{{ .Env.DOMAIN }}}/stacks/observability-client/vector/values.yaml
+    - repoURL: https://{{{ .Env.CLIENT_REPO_DOMAIN }}}/{{{ .Env.CLIENT_REPO_ORG_NAME }}}
+      targetRevision: HEAD
+      ref: values