azure-health-deidentification needs typing updates for pyright version 1.1.411

**ACTION NEEDED:** This version of pyright will be merged on **2026-10-12**. The build will begin to fail for this library if errors are not fixed.

**Library name:** azure-health-deidentification
**Pyright version:** 1.1.411
**Pyright Build:** [Link to build (2026-07-27)](https://dev.azure.com/azure-sdk/internal/_build/results?buildId=6618467&view=logs&j=87f850b5-cf15-53c6-370a-4be21ee70ec7&t=d243185e-b901-5eef-29fe-f7943e030451)
**How to fix:** Run the `next-pyright` azpysdk command at the library package-level and resolve the typing errors.
1) `/mnt/vss/_work/1/s>pip install -e ./eng/tools/azure-sdk-tools`
2) `../azure-health-deidentification>azpysdk next-pyright --isolate .`

See the [Typing Guide](https://github.com/Azure/azure-sdk-for-python/blob/main/doc/dev/static_type_checking.md#run-mypy) for more information.