Fix OpenVINO notebook dependency vulnerabilities

[morteza89]

this is for vulnerability fixes.

[Copilot]

Pull request overview

Updates the isolated Python environments used by the hello-npu and gpu-device OpenVINO notebook samples to address dependency vulnerability findings by raising minimum versions and regenerating the uv.lock files accordingly.

Changes:

• Raise minimum versions / add explicit constraints for Jupyter components and related dependencies (e.g., jupyterlab, jupyter-server, tornado, mistune, pillow, setuptools).
• Regenerate uv.lock files to reflect resolved versions (including new transitive additions like jupyter-builder) and updated artifact hashes/URLs.
• Keep the two notebook environments aligned on the same minimum security baselines for shared Jupyter/runtime packages.

Reviewed changes

Copilot reviewed 2 out of 4 changed files in this pull request and generated no comments.

File	Description
openvino_notebooks/hello-npu/pyproject.toml	Adds/raises minimum dependency versions for notebook runtime packages to address vulnerabilities.
openvino_notebooks/hello-npu/uv.lock	Lockfile regeneration reflecting upgraded Jupyter stack and related dependency versions/artifacts.
openvino_notebooks/gpu-device/pyproject.toml	Aligns GPU notebook environment dependency minimums with updated secure baselines.
openvino_notebooks/gpu-device/uv.lock	Lockfile regeneration reflecting upgraded Jupyter stack and related dependency versions/artifacts.

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