Perf regression: antiforgery-noop, json_middleware

[pr-benchmarks]

Scenario	Environment	Date	Old RPS	New RPS	Change	Deviation	StDev	Dependencies
antiforgery-noop	Antiforgery No Operation 13- Trends Cobalt Hosted Lin Server	10/05/2025 19:43:18	554,240	280,800	-49.34 % (-273,440) 👎	-2.83 σ	96,644.27	Changes Name Version Diff Microsoft.AspNetCore.Antiforgery.dll 10.0.0-rtm.25479.102 -> 10.0.0-rtm.25479.115 dotnet/dotnet@660fe37...e72b5bb Microsoft.AspNetCore.App 10.0.0-rtm.25479.102 -> 10.0.0-rtm.25479.115 660fe37...e72b5bb Microsoft.NETCore.App 10.0.0-rtm.25479.102 -> 10.0.0-rtm.25479.115 dotnet/runtime@660fe37...e72b5bb
json_middleware	Json 10k 13- Trends Cobalt Hosted Lin Server	10/05/2025 19:42:22	266,187	163,028	-38.75 % (-103,159) 👎	-2.43 σ	42,461.13	Changes Name Version Diff Microsoft.AspNetCore.Antiforgery.dll 10.0.0-rtm.25479.102 -> 10.0.0-rtm.25479.115 dotnet/dotnet@660fe37...e72b5bb Microsoft.AspNetCore.App 10.0.0-rtm.25479.102 -> 10.0.0-rtm.25479.115 660fe37...e72b5bb Microsoft.NETCore.App 10.0.0-rtm.25479.102 -> 10.0.0-rtm.25479.115 dotnet/runtime@660fe37...e72b5bb

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