ENG-21369: Updates default Ray image for Python 3.11

Author: bredamc

modules/running-the-demo-notebooks-from-the-codeflare-sdk.adoc

@@ -116,7 +116,7 @@ The Python version in the Ray cluster image must be the same as the Python versi
 If you omit this line, one of the following Ray cluster images is used by default, based on the Python version detected in the workbench:
 
 * Python 3.9: `quay.io/modh/ray:2.35.0-py39-cu121`
-* Python 3.11: `quay.io/modh/ray:2.35.0-py311-cu121`
+* Python 3.11: `quay.io/modh/ray:2.44.1-py311-cu121`
 
 The default Ray images are compatible with NVIDIA GPUs that are supported by the specified CUDA version.
 The default images are AMD64 images, which might not work on other architectures.