[main] Workaround REVOCATION in .NET 10 by setting DOTNET_SYSTEM_NET_SECURITY_NOREVOCATIONCHECKBYDEFAULT (#30514)

* Initial plan

* Add DOTNET_SYSTEM_NET_SECURITY_NOREVOCATIONCHECKBYDEFAULT environment variable

Co-authored-by: PureWeen <5375137+PureWeen@users.noreply.github.com>

* Update copilot-setup-steps.yml

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: PureWeen <5375137+PureWeen@users.noreply.github.com>
Co-authored-by: Shane Neuville <shneuvil@microsoft.com>

Author: 3 people

.github/workflows/copilot-setup-steps.yml

@@ -35,6 +35,7 @@ jobs:
           echo "$GITHUB_WORKSPACE/.dotnet" >> "$GITHUB_PATH"
           echo "DOTNET_ROOT=$GITHUB_WORKSPACE/.dotnet" >> "$GITHUB_ENV"
           echo "DOTNET_INSTALL_DIR=$GITHUB_WORKSPACE/.dotnet" >> "$GITHUB_ENV"
+          echo "DOTNET_SYSTEM_NET_SECURITY_NOREVOCATIONCHECKBYDEFAULT=true" >> "$GITHUB_ENV"
 
       - name: Ensure we are using the correct .NET
         shell: pwsh

eng/cake/dotnet.cake

@@ -607,6 +607,7 @@ Dictionary<string, string> GetDotNetEnvironmentVariables()
     envVariables.Add("DOTNET_ROOT", dotnet);
     envVariables.Add("DOTNET_MSBUILD_SDK_RESOLVER_CLI_DIR", dotnet);
     envVariables.Add("DOTNET_MULTILEVEL_LOOKUP", "0");
+    envVariables.Add("DOTNET_SYSTEM_NET_SECURITY_NOREVOCATIONCHECKBYDEFAULT", "true");
     envVariables.Add("MSBuildEnableWorkloadResolver", "true");
 
     var existingPath = EnvironmentVariable("PATH");
@@ -629,6 +630,7 @@ void SetDotNetEnvironmentVariables(string dotnetDir = null)
     SetEnvironmentVariable("DOTNET_ROOT", dotnet);
     SetEnvironmentVariable("DOTNET_MSBUILD_SDK_RESOLVER_CLI_DIR", dotnet);
     SetEnvironmentVariable("DOTNET_MULTILEVEL_LOOKUP", "0");
+    SetEnvironmentVariable("DOTNET_SYSTEM_NET_SECURITY_NOREVOCATIONCHECKBYDEFAULT", "true");
     SetEnvironmentVariable("MSBuildEnableWorkloadResolver", "true");
     SetEnvironmentVariable("PATH", dotnet, prepend: true);