Install typing-extensions v4.6.3 for Optuna

[tenzen-y]

What this PR does / why we need it:
We need to install typing-extensions v4.6.0 or newer to resolve the following CI error:

E ImportError: cannot import name 'TypeAliasType' from 'typing_extensions' (/opt/hostedtoolcache/Python/3.9.18/x64/lib/python3.9/site-packages/typing_extensions.py)

https://github.com/kubeflow/katib/actions/runs/7400396607/job/20133921603?pr=2250#step:4:594

The root cause is that the sqlalchemy on which the optuna depends requires typing-extensions v4.6.0 or newer:

Optuna dependencies: https://github.com/optuna/optuna/blob/v3.3.0/pyproject.toml#L40

sqlalchemy dependencies: https://github.com/sqlalchemy/sqlalchemy/blob/4871a2f72f5f0e514fe81a8caa17a14f9fc51300/setup.cfg#L38-L39

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Checklist:

• Docs included if any changes are user facing

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: tenzen-y

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[tenzen-y]

/assign @andreyvelich @johnugeorge

This PR is blocking all PRs.

[andreyvelich]

Thanks for the fix @tenzen-y!
/lgtm