feat: update kustomization to include new namespaces and charts

Removes deprecated resources and adds new namespaces for 
external-secrets, cert-manager, and ingress-nginx. Updates 
kustomization to include helm charts for cert-manager and 
ingress-nginx with the latest versions, ensuring better 
resource management and improved deployment consistency.

kind/external-secrets.yaml

@@ -1,4 +0,0 @@
-apiVersion: v1
-kind: Namespace
-metadata:
-  name: external-secrets

kind/kustomization.yaml

@@ -3,9 +3,7 @@ kind: Kustomization
 resources:
 - postgres.yaml
 - rabbitmq.yaml
-- external-secrets.yaml
+- namespaces.yaml
-- https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/kind/deploy.yaml
-- https://github.com/jetstack/cert-manager/releases/download/v1.15.3/cert-manager.yaml
 - certificates.yaml
 - secrets-store.yaml
 helmCharts:
@@ -15,3 +13,19 @@ helmCharts:
   releaseName: external-secrets
   repo: https://charts.external-secrets.io
   version: 0.18.1
+- name: cert-manager
+  namespace: cert-manager
+  includeCRDs: true
+  releaseName: cert-manager
+  repo: https://charts.jetstack.io
+  version: v1.18.0
+  valuesInline:
+    crds:
+      enabled: true
+- name: ingress-nginx
+  namespace: ingress-nginx
+  includeCRDs: true
+  releaseName: ingress-nginx
+  repo: https://kubernetes.github.io/ingress-nginx
+  version: v4.12.3
+  valuesFile: https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/hack/manifest-templates/provider/kind/values.yaml

kind/namespaces.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: external-secrets
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: cert-manager
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: ingress-nginx