Revert "Raplace cp by copy"

This reverts commit 596763df

CI/ci-windows-bootstrap.bat

@@ -65,10 +65,10 @@ mkdir CI
 cd ..
 )
 echo %Time%: restoring bootstrap script ...
-copy %~dp0\ci-windows-bootstrap.bat artifacts/CI/ci-windows-bootstrap.bat
+cp %~dp0\ci-windows-bootstrap.bat artifacts/CI/ci-windows-bootstrap.bat
 
 REM when this script returns, the windows Command interpreter will look
 REM at the original position for the script to continue after the the call command
 REM of level 0
 IF "%bootstrapretval%" NEQ "0" exit /b %bootstrapretval%
-)
+)
\ No newline at end of file