try to get CI server working

mgravell · mgravell · commit 975884ca83da · 2020-11-14T14:13:53.000Z
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,5 +1,9 @@
 image: Visual Studio 2019
 
+install:
+- cmd: >-
+    choco install dotnet-sdk --version 5.0.100
+
 skip_branch_with_pr: true
 skip_tags: true
 skip_commits:
