Run-xunit-perf: update TraceEvents version number

The perf harness needs 1.0.3-alpha-experimental now.

Author: JosephTremoulet

tests/scripts/run-xunit-perf.cmd

@@ -46,7 +46,7 @@ pushd sandbox
 @rem xunit and perf
 "%CORECLR_REPO%\Tools\dotnetcli\dotnet.exe" restore "%CORECLR_REPO%\tests\src\Common\PerfHarness\project.json"
 "%CORECLR_REPO%\Tools\dotnetcli\dotnet.exe" publish "%CORECLR_REPO%\tests\src\Common\PerfHarness\project.json" -c Release -o %CORECLR_REPO%\sandbox
-xcopy /sy %CORECLR_REPO%\packages\Microsoft.Diagnostics.Tracing.TraceEvent\1.0.0-alpha-experimental\lib\native\* . >> %RUNLOG%
+xcopy /sy %CORECLR_REPO%\packages\Microsoft.Diagnostics.Tracing.TraceEvent\1.0.3-alpha-experimental\lib\native\* . >> %RUNLOG%
 xcopy /sy %CORECLR_REPO%\bin\tests\Windows_NT.%TEST_ARCH%.%TEST_CONFIG%\Tests\Core_Root\* . >> %RUNLOG%
 
 @rem find and stage the tests