[tests] use new codecov-cli package for upload

The previously used bash uploader is deprecated.

Change-Id: Ie02a7307877b84916677071123722bcfd94ab423
---
M .appveyor.yml
1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/.appveyor.yml b/.appveyor.yml
index cf2b780..4cba969 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -93,9 +93,11 @@
 
   - "%CMD_IN_ENV% coverage run -m unittest discover -vv -p \"*_tests.py\""
 
-on_finish:
+after_test:
   - ps: |
       $env:PATH = 'C:\msys64\usr\bin;' + $env:PATH
       coverage report
-      Invoke-WebRequest -Uri 'https://codecov.io/bash' -OutFile codecov.sh
-      bash codecov.sh -U "-s" -A "-s"
+
+on_finish:
+  - pip install codecov-cli
+  - codecovcli do-upload

