Update Helm release cert-manager to v1.19.4 (#1510)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

apps/cert-manager/overlays/prod/kustomization.yaml

@@ -11,7 +11,7 @@ helmCharts:
     repo: https://charts.jetstack.io
     releaseName: cert-manager
     namespace: cert-manager
-    version: v1.19.3
+    version: v1.19.4
     includeCRDs: true
     valuesInline:
       crds: