Update coverage.yml

Author: wangzelin007

.github/workflows/coverage.yml

@@ -102,7 +102,7 @@ jobs:
       run: |
         set -ev
         source ./env/bin/activate
+        pip install --upgrade pyOpenSSL cryptography
         az --version
         azdev extension add "*"
-        azdev extension remove virtual-wan
         azdev statistics list-command-table CLI --statistics-only