update pvc resources for data-lakehouse-iceberg-trino-spark demo

Author: xeniape

Diff for: demos/demos-v2.yaml

@@ -174,7 +174,7 @@ demos:
     resourceRequests:
       cpu: "80"
       memory: 200Gi
-      pvc: 1Ti
+      pvc: 300Gi
   jupyterhub-pyspark-hdfs-anomaly-detection-taxi-data:
     description: Jupyterhub with PySpark and HDFS integration
     documentation: https://docs.stackable.tech/stackablectl/stable/demos/jupyterhub-pyspark-hdfs-anomaly-detection-taxi-data.html

Diff for: docs/modules/demos/pages/data-lakehouse-iceberg-trino-spark.adoc

@@ -41,7 +41,7 @@ Instance types that loosely correspond to this on the Hyperscalers are:
 - *Azure*: `Standard_D4_v2`
 - *AWS*: `m5.2xlarge`
 
-In addition to these nodes the operators will request multiple persistent volumes with a total capacity of about 1TB.
+In addition to these nodes the operators will request multiple persistent volumes with a total capacity of about 300Gi.
 
 == Overview