Fix pydicom version in TCIA tutorial

[KumoLiu]

Fixes #1901

Description

The _storage_sopclass_uids module has been removed since version 3.0. pydicom-seg didn't update accordingly, we can only fixed the version for now.
https://pydicom.github.io/pydicom/dev/release_notes/index.html#removals
https://www.piwheels.org/project/pydicom-seg/

Checks

• Avoid including large-size files in the PR.
• Clean up long text outputs from code cells in the notebook.
• For security purposes, please check the contents and remove any sensitive info such as user names and private key.
• Ensure (1) hyperlinks and markdown anchors are working (2) use relative paths for tutorial repo files (3) put figure and graphs in the ./figure folder
• Notebook runs automatically ./runner.sh -t <path to .ipynb file>

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[ericspod]

This fix looks fine for now, hopefully pydicom-seg gets updated.