Update Helm release cost-analyzer to v2.3.4

Author: renovate[bot]

apps/kubecost/base/kustomization.yaml

@@ -8,7 +8,7 @@ helmCharts:
     releaseName: kubecost
     namespace: kubecost
     repo: https://kubecost.github.io/cost-analyzer
-    version: 2.3.3
+    version: 2.3.4
     valuesInline:
       global:
         prometheus: