overrides: retain local path storage volumes

overrides/stackspin-local-path-provisioner-override.yaml

+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: stackspin-local-path-provisioner-override
+data:
+  values.yaml: |
+    storageClass:
+      reclaimPolicy: Retain

overrides/storageclass-retain.yaml

+# https://github.com/rancher/local-path-provisioner?tab=readme-ov-file#storage-classes
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: local-path-retain
+provisioner: cluster.local/local-path-provisioner
+reclaimPolicy: Retain
+volumeBindingMode: WaitForFirstConsumer