Update Myget key

Author: Jeavon

appveyor.yml

@@ -37,7 +37,7 @@ deploy:
     server: https://www.myget.org/F/umbracofilesystemproviders-azure/api/v2/package
     symbol_server: https://www.myget.org/F/umbracofilesystemproviders-azure/symbols/api/v2/package
     api_key:
-      secure: fz0rUrt3B1HczUC1ZehwVsrFSWX9WZGDQoueDztLte9/+yQG+BBU7UrO+coE8lUf
+      secure: yvlnQEq6tmxGOdbtTuKyAhcdY1GCD98/sG9+Qo7y7SNb89GAbjLXxueOMspkjvUh
     artifact: /.*\.nupkg/
     on:
       branch: develop