Perf improvement: antiforgery-generation

[pr-benchmarks]

Scenario	Environment	Date	Old RPS	New RPS	Change	Deviation	StDev	Dependencies
antiforgery-generation [Fixed]	Antiforgery Token Generation 8- Trends Gold Lin	08/07/2025 14:31:29	309,954	339,346	9.48 % (29,392) 👍	2.59 σ	11,329.87	Changes Name Version Diff Microsoft.AspNetCore.Antiforgery.dll 10.0.0-rc.1.25401.103 -> 10.0.0-rc.1.25406.102 dotnet/dotnet@8b29a16...30bc8f9 Antiforgery.dll 1.0.0 -> 1.0.0 aspnet/Benchmarks@a05388c...24d264f Microsoft.AspNetCore.App 10.0.0-rc.1.25401.103 -> 10.0.0-rc.1.25406.102 8b29a16...30bc8f9 Microsoft.NETCore.App 10.0.0-rc.1.25401.103 -> 10.0.0-rc.1.25406.102 dotnet/runtime@8b29a16...30bc8f9

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