Updated the build server target to support .NET6

HeyJoel · HeyJoel · commit bf9516b4e0ee · 2022-07-29T16:01:36.000+01:00
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,5 +1,5 @@
 version: '{build}'
-image: Visual Studio 2019
+image: Visual Studio 2022
 build_script:
 - cmd: PowerShell .\build.ps1 --PushPackages="true"
 test: off
