Issue opendatahub-io#2580: fix(trusty): set same permissions for group as for owner for OpenShift compatibility (opendatahub-io#2581)

```
=========================== short test summary info ============================
[Checking permissions of the: /opt/app-root/share] SUBFAIL tests/containers/base_image_test.py::TestBaseImage::test_file_permissions[ghcr.io/opendatahub-io/notebooks/workbench-images:jupyter-trustyai-ubi9-python-3.12-_40a15f26ca1f3af8135ddbadee43708501cd19b1] - AssertionError: assert '755:0:1001' == '775:0:1001'

  - 775:0:1001
  ?  ^
  + 755:0:1001
  ?  ^
FAILED
```

Author: jiridanek

jupyter/trustyai/ubi9-python-3.12/Dockerfile.cpu

@@ -200,7 +200,8 @@ RUN --mount=type=cache,target=/root/.cache/uv \
     #       Build debugpy from source instead
     UV_LINK_MODE=copy uv pip install --no-cache git+https://github.com/microsoft/debugpy.git@v$(grep -A1 '\"debugpy\"' ./pylock.toml | grep -Eo '\b[0-9\.]+\b') && \
     # change ownership to default user (all packages were installed as root and has root:root ownership \
-    chown -R 1001:0 /opt/app-root/
+    chown -R 1001:0 /opt/app-root/ && \
+    chmod -R g=u /opt/app-root
 
 USER 1001