Try new appveyor.yml

Author: yang-xiaodong

appveyor.yml

@@ -6,6 +6,8 @@ environment:
   Cap_MySql_ConnectionString: Server=localhost;Database=cap_test;Uid=root;Pwd=Password12!;Allow User Variables=True;SslMode=none
 services:
   - mysql
+init:
+  - ps: Start-Service MySQL80
 before_build:
   - ps: dotnet tool install --global FlubuCore.GlobalTool --version 6.3.2
 build_script: