RHAIENG-287: fix(runtime/datascience): set same permissions for group as for owner for OpenShift compatibility (opendatahub-io#2589)

```
=================================== FAILURES ===================================
_ TestBaseImage.test_file_permissions[ghcr.io/opendatahub-io/notebooks/workbench-images:runtime-datascience-ubi9-python-3.12-_fdc10eaf1ab4a40309e04a455f9b9a79989c8130] [Checking permissions of the: /opt/app-root/share] _
tests/containers/base_image_test.py:243: in test_fn
    assert cleaned_output == f"{item[1]}:{item[2]}:{item[3]}"
E   AssertionError: assert '775:0:0' == '775:0:1001'
E
E     - 775:0:1001
E     ?       - --
E     + 775:0:0
```

* see also issue opendatahub-io#2580, PR opendatahub-io#2581
* and opendatahub-io#2465 which introduced the root thing in trustyai

Author: jiridanek

runtimes/datascience/ubi9-python-3.12/Dockerfile.cpu

@@ -369,6 +369,9 @@ RUN --mount=type=cache,target=/root/.cache/pip \
         #  we often don't know the correct hashes and `--require-hashes` would therefore fail on non amd64, where building is common.
         uv pip install --strict --no-deps --no-cache --no-config --no-progress --verify-hashes --compile-bytecode --index-strategy=unsafe-best-match --requirements=./pylock.toml; \
     fi && \
+    # change ownership to default user (all packages were installed as root and has root:root ownership
+    chown -R 1001:0 /opt/app-root/ && \
+    chmod -R g=u /opt/app-root && \
     # Fix permissions to support pip in Openshift environments
     chmod -R g+w /opt/app-root/lib/python3.12/site-packages && \
     fix-permissions /opt/app-root -P