Disable readytorun/coreroot_determinism test on GCStress due to test failure (#67468)

Tracking: https://github.com/dotnet/runtime/issues/58699

src/tests/readytorun/coreroot_determinism/coreroot_determinism.csproj

 <Project Sdk="Microsoft.NET.Sdk" ToolsVersion="Current">
   <PropertyGroup>
     <OutputType>exe</OutputType>
+    <!-- Disabled for GCStress due to test failure tracked by https://github.com/dotnet/runtime/issues/58699 -->
+    <GCStressIncompatible>true</GCStressIncompatible>
     <CLRTestTargetUnsupported Condition="'$(RuntimeFlavor)' != 'coreclr'">true</CLRTestTargetUnsupported>
     <!-- This is an explicit crossgen test -->
     <CrossGenTest>false</CrossGenTest>