Fix 1g_pipeline_with_parallel_nodes: bump to py3.8 + ubuntu22.04 image

[Chakradhar886]

Description

Root Cause

PRS driver now requires Python 3.8+ (from typing import TypedDict). The env was pinned to python=3.7.6, causing cannot import name 'TypedDict' from 'typing' and SystemExit: 42.
Base image openmpi4.1.0-ubuntu20.04 reached EOL.

Changes
sdk/python/jobs/pipelines/1g_pipeline_with_parallel_nodes/:

src/environment_parallel.yml:

python=3.7.6 → python=3.8
scikit-learn==0.20.3 → scikit-learn==0.23.2 (legacy iris pickle compat: keeps [sklearn.linear_model.logistic]shim removed in 0.24)
cloudpickle==1.1.1 → cloudpickle==2.2.1 (py3.8 wheels)
added numpy<1.24 (sklearn 0.23 uses np.float, removed in numpy 1.24)
[pipeline_with_parallel_nodes.ipynb] : image openmpi4.1.0-ubuntu20.04 → openmpi4.1.0-ubuntu22.04

Checklist

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