Update code owners for R2R related code

Author: vitek-karas

CODEOWNERS

@@ -66,12 +66,12 @@
 # ILLink and ReadyToRun targets and tasks owned by runtime team
 # Area-ILLink Area-ReadyToRun
 /src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.ILLink.targets @dotnet/illink
-/src/Tasks/Microsoft.NET.Build.Tasks/PrepareForReadyToRunCompilation.cs @AntonLapounov
-/src/Tasks/Microsoft.NET.Build.Tasks/RunReadyToRunCompiler.cs @AntonLapounov
+/src/Tasks/Microsoft.NET.Build.Tasks/PrepareForReadyToRunCompilation.cs @steveisok
+/src/Tasks/Microsoft.NET.Build.Tasks/RunReadyToRunCompiler.cs @steveisok
 /test/Microsoft.NET.Publish.Tests/GivenThatWeWantToRunILLink.cs @dotnet/illink
-/test/Microsoft.NET.Publish.Tests/GivenThatWeWantToPublishReadyToRun.cs @AntonLapounov
+/test/Microsoft.NET.Publish.Tests/GivenThatWeWantToPublishReadyToRun.cs @steveisok
 # Publish.targets related to ILLink and ReadyToRun is own by both runtime and SDK team
-/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.Publish.targets @dotnet/illink @AntonLapounov @dotnet/dotnet-cli
+/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.Publish.targets @dotnet/illink @steveisok @dotnet/dotnet-cli
 # Area-ClickOnce
 /src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.ClickOnce.targets @sujitnayak