[typespec-python] Regenerate tests from microsoft/typespec@main

GitHub Actions is not permitted to create pull requests in this repository, so this issue tracks the regeneration instead. **Click the link below to open a pre-filled PR:** 👉 [Create pull request from `regen/typespec-python-main`](https://github.com/Azure/azure-sdk-for-python/compare/typespec-python-generated-tests...regen/typespec-python-main?quick_pull=1&title=%5Btypespec-python%5D%20Regenerate%20tests%20from%20microsoft%2Ftypespec%40main&body=Fixes%20https%3A%2F%2Fgithub.com%2FAzure%2Fazure-sdk-for-python%2Fissues%2F48064%0A%0ASource%3A%20https%3A%2F%2Fgithub.com%2Fmicrosoft%2Ftypespec%2Ftree%2Fmain%0A%0AAutomated%20regeneration%20of%20TypeSpec%20Python%20generated%20tests%20from%20microsoft%2Ftypespec%40main.%0A%0A-%20Workflow%20run%3A%20https%3A%2F%2Fgithub.com%2FAzure%2Fazure-sdk-for-python%2Factions%2Fruns%2F29391650121%0A%0AThis%20PR%20was%20auto-generated.%20Re-run%20the%20workflow%20to%20update%20it%20after%20new%20commits%20are%20pushed%20to%20the%20upstream%20TypeSpec%20PR) Details: - Source: [microsoft/typespec@main](https://github.com/microsoft/typespec/tree/main) - Branch: [`regen/typespec-python-main`](https://github.com/Azure/azure-sdk-for-python/tree/regen/typespec-python-main) - Latest workflow run: https://github.com/Azure/azure-sdk-for-python/actions/runs/29391650121 > Note: the PR targets the `typespec-python-generated-tests` branch, so merging it will **not** auto-close this issue. Please close this issue manually after the PR is merged. cc @msyyc