Change default nodePathMap value in storageClassConfigs in values.yml to []

Because it is actually an array and not an object

Author: Birkenstab

deploy/chart/local-path-provisioner/values.yaml

@@ -91,7 +91,7 @@ nodePathMap:
 #     sharedFileSystemPath: ""
 #     ## OR
 #     # See above
-#     nodePathMap: {}
+#     nodePathMap: []
 
 podAnnotations: {}