use `copy` instead of `cp` for Windows build stage script

17 jobs for 1.1.1 in 5 minutes and 48 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Build
passed build-2.7-linux #55339
Linux

00:01:19

passed build-2.7-macos #55340
Apple

00:02:30

passed build-3.5-linux #55337
Linux

00:01:23

passed build-3.5-macos #55338
Apple

00:02:31

passed build-3.6-VS2017 #55336
VS2017

00:01:48

 
  Test
passed test-2.7-linux #55344
Linux

00:00:07

passed test-2.7-macos #55345
Apple

00:00:11

passed test-3.5-linux #55342
Linux

00:00:08

passed test-3.5-macos #55343
Apple

00:00:12

passed test-3.6-VS2017 #55341
VS2017

00:00:33

 
  Deploy
passed deploy-2.7-linux #55349
Linux

00:00:01

passed deploy-2.7-macos #55350
Apple

00:00:02

passed deploy-3.5-linux #55347
Linux

00:00:01

passed deploy-3.5-macos #55348
Apple

00:00:01

passed deploy-3.6-VS2017 #55346
VS2017

00:00:04

passed deploy-documentation #55352
Linux

00:00:10

passed deploy-sdist #55351
Linux

00:00:12