[TASK] Upgrade Python to 3.12 - crud-web-apps/jupyter

[liavweiss]

Certification

• I certify I am an Epic Owner for Kubeflow Notebooks 2.0 and expected to create planning-related issues.

Description

Update the Python toolchain for crud-web-apps/jupyter to version 3.12.
Update the Python toolchain for crud-web-apps/common to version 3.12.

Scope:

• Update Dockerfile base:
  FROM python:3.12-slim
• Update CI workflows:
  • jwa_backend_unittests.yaml
  • python_lint.yaml → python-version: "3.12"
• Update common/backend/setup.py (minimal adjustments):
  • Keep python_requires broad (e.g., ">=3.8")
  • Raise mins: Flask ≥ 2.3.2, Werkzeug ≥ 3.0.6, requests ≥ 2.32.4, urllib3 ≥ 2.5.0
• Build:
  docker build -f notebooks/components/crud-web-apps/jupyter/Dockerfile notebooks/components
• Run backend tests.

Acceptance Criteria

• Backend builds and tests pass on Python 3.12.
• Validate that the test files are coverd evrything.
• Check all files under /crud-web-apps/jupyter and /crud-web-apps/common that there is no other needed Python upgrades.

[liavweiss]

/area v1

[noalimoy]

/assign

[noalimoy]

/unassign

[asaadbalum]

/assign