Update supported versions. (#274)

* Update supported versions.

* Fix image name and add scala version.

Author: razvan

docs/modules/spark-k8s/pages/index.adoc

@@ -57,3 +57,8 @@ In the xref:stackablectl::demos/spark-k8s-anomaly-detection-taxi-data.adoc[] dem
 The Stackable Operator for Apache Spark on Kubernetes currently supports the following versions of Spark:
 
 include::partial$supported-versions.adoc[]
+
+The Spark images do not include Python. For PySpark users, there are separate images called `pyspark-k8s` instead of `spark-k8s`. These come with different Python versions as follows:
+
+- pyspark-k8s:3.3.0-hadoop3 : Python 3.9
+- pyspark-k8s:3.4.0-hadoop3 : Python 3.11

docs/modules/spark-k8s/partials/supported-versions.adoc

@@ -2,7 +2,5 @@
 // This is a separate file, since it is used by both the direct Spark documentation, and the overarching
 // Stackable Platform documentation.
 
-- 3.2.1-hadoop3.2
-- 3.2.1-hadoop3.2-python39
-- 3.3.0-hadoop3
-- 3.4.0-hadoop3
+- 3.3.0-hadoop3 (Hadoop 3.3.3, Scala 2.12, Java 11)
+- 3.4.0-hadoop3 (Hadoop 3.3.4, Scala 2.12, Java 11)