RHAIENG-287: fix(kustomization.yaml): abbreviate namePrefix to resolve Kubernetes label character limit issue

```
kubernetes namespace events
  [INFO] Running command (('kubectl get events',), {'shell': True})
  LAST SEEN   TYPE      REASON         OBJECT                                                                MESSAGE
  71s         Warning   FailedCreate   statefulset/jupyter-pytorch-llmcompressor-ubi9-python-3-12-notebook   create Pod jupyter-pytorch-llmcompressor-ubi9-python-3-12-notebook-0 in StatefulSet jupyter-pytorch-llmcompressor-ubi9-python-3-12-notebook failed error: Pod "jupyter-pytorch-llmcompressor-ubi9-python-3-12-notebook-0" is invalid: metadata.labels: Invalid value: "jupyter-pytorch-llmcompressor-ubi9-python-3-12-notebook-7d69c59fc6": must be no more than 63 characters
```

```
+ notebook_workload_name=jupyter-pt-llmcompress-ubi9-python-3-12-notebook-0
+ _handle_test
+ local notebook_id=
++ _get_notebook_id
++ local notebook_id=
++ local accelerator=cuda
++ accelerator=
++ case "${notebook_workload_name}" in
++ printf '%s\n' 'No matching condition found for jupyter-pt-llmcompress-ubi9-python-3-12-notebook-0.'
++ exit 1
```

Author: jiridanek

jupyter/pytorch+llmcompressor/ubi9-python-3.12/kustomize/base/kustomization.yaml

@@ -1,7 +1,9 @@
 ---
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
-namePrefix: jupyter-pytorch-llmcompressor-ubi9-python-3-12-
+# have to abbreviate the prefix, otherwise we'd go over the 63 character limit
+# > Pod "jupyter-pytorch-llmcompressor-ubi9-python-3-12-notebook-0" is invalid: metadata.labels: Invalid value: "jupyter-pytorch-llmcompressor-ubi9-python-3-12-notebook-7d69c59fc6": must be no more than 63 characters
+namePrefix: jupyter-pt-llmcompress-ubi9-python-3-12-
 labels:
   - includeSelectors: true
     pairs:

scripts/test_jupyter_with_papermill.sh

@@ -346,6 +346,9 @@ function _get_notebook_id() {
         *${jupyter_pytorch_notebook_id}-*)
             notebook_id="${accelerator:+$accelerator/}${jupyter_pytorch_notebook_id}"
             ;;
+        *${jupyter_pytorch_llmcompressor_notebook_shortened_id}-*)
+            notebook_id="${accelerator:+$accelerator/}${jupyter_pytorch_llmcompressor_notebook_full_id}"
+            ;;
         *)
             printf '%s\n' "No matching condition found for ${notebook_workload_name}."
             exit 1
@@ -387,6 +390,8 @@ jupyter_datascience_notebook_id='datascience'
 jupyter_trustyai_notebook_id='trustyai'
 jupyter_pytorch_notebook_id='pytorch'
 jupyter_tensorflow_notebook_id='tensorflow'
+jupyter_pytorch_llmcompressor_notebook_shortened_id='pt-llmcompress'
+jupyter_pytorch_llmcompressor_notebook_full_id="pytorch-llmcompressor"
 
 notebook_name=$( _get_notebook_name "${test_target}" )
 python_flavor="python-${test_target//*-python-/}"  # <-- python-3.11