Perf improvement: antiforgery-validation

[pr-benchmarks]

Scenario	Environment	Date	Old RPS	New RPS	Change	Deviation	StDev	Dependencies
antiforgery-validation [Fixed]	Antiforgery Token Validation 5- Trends Intel Win	08/30/2025 08:45:12	376,615	396,007	5.15 % (19,392) 👍	4.81 σ	4,030.07	Changes Name Version Diff Microsoft.AspNetCore.Antiforgery.dll 10.0.0-rc.2.25427.104 -> 10.0.0-rc.2.25429.103 dotnet/dotnet@7ac1ca6...f53e1cf Microsoft.AspNetCore.App 10.0.0-rc.2.25427.104 -> 10.0.0-rc.2.25429.103 7ac1ca6...f53e1cf Microsoft.NETCore.App 10.0.0-rc.2.25427.104 -> 10.0.0-rc.2.25429.103 dotnet/runtime@7ac1ca6...f53e1cf

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