[WIP] Add test case for pull request 3922

[Copilot]

• Identify the Spector case: Azure_Core_Page_withRelativeNextLink from Add test scenario for relative nextLink URLs in pagination Azure/typespec-azure#3922
• Update package.json @azure-tools/azure-http-specs from dev.1 → dev.2 to pick up the new scenario
• Create sync test test_list_with_relative_next_link in test_azure_core_page.py
• Create async test test_list_with_relative_next_link in test_azure_core_page_async.py
• Add changelog entry .chronus/changes/add-relative-nextlink-page-test-2026-2-11-12-8-10.md
• Build environment and regenerate the specific client (azure/core/page)
• Validate tests locally: all 6 sync + 6 async tests pass

Original prompt

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This section details on the original issue you should resolve

<issue_title>[python] add test case for Azure/typespec-azure#3922</issue_title>
<issue_description>follow skill https://github.com/microsoft/typespec/blob/main/.github/skills/python-sdk-spector-mock-api-tests/SKILL.md to write test case for Azure/typespec-azure#3922</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [python] add test case for https://github.com/Azure/typespec-azure/pull/3922 #5

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