Update CoreClr, CoreFx to preview3-25508-02, preview3-25508-03, respectively (#12629)

Author: dotnet-maestro-bot

dependencies.props

@@ -13,18 +13,18 @@
 
   <!-- Source of truth for dependency tooling: the commit hash of the dotnet/versions master branch as of the last auto-upgrade. -->
   <PropertyGroup>
-    <CoreFxCurrentRef>55761ec64d048fb371c67b3b6bf3a971bf8d96a4</CoreFxCurrentRef>
-    <CoreClrCurrentRef>55761ec64d048fb371c67b3b6bf3a971bf8d96a4</CoreClrCurrentRef>
+    <CoreFxCurrentRef>d6c839cebfc879fa6b7d0d953b3788c9d19ad5f0</CoreFxCurrentRef>
+    <CoreClrCurrentRef>d6c839cebfc879fa6b7d0d953b3788c9d19ad5f0</CoreClrCurrentRef>
   </PropertyGroup>
 
   <!-- Auto-upgraded properties for each build info dependency. -->
   <PropertyGroup>
-    <CoreFxExpectedPrerelease>preview3-25504-01</CoreFxExpectedPrerelease>
+    <CoreFxExpectedPrerelease>preview3-25508-03</CoreFxExpectedPrerelease>
   </PropertyGroup>
 
   <!-- Full package version strings that are used in other parts of the build. -->
   <PropertyGroup>
-    <CoreClrPackageVersion>2.0.0-preview3-25504-01</CoreClrPackageVersion>
+    <CoreClrPackageVersion>2.0.0-preview3-25508-02</CoreClrPackageVersion>
     <XunitPackageVersion>2.2.0-beta2-build3300</XunitPackageVersion>
     <XUnitConsoleNetCoreVersion>1.0.2-prerelease-00177</XUnitConsoleNetCoreVersion>
     <XUnitPerformanceApiVersion>1.0.0-beta-build0007</XUnitPerformanceApiVersion>