Update azure-typespec/http-client-csharp version to prerelease 1.0.0-alpha.20260526.2 (Azure#59449)

* Regenerate repository SDK with TypeSpec build 20260526.2

* Update SDK code re_wo_4

* Update SDK code ed_mo_2

* Update SDK code ad_co_0

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Co-authored-by: azure-sdk <azuresdk@microsoft.com>
Co-authored-by: Jorge Rangel <jorgerangel@microsoft.com>

Author: 3 people