and a what?

.drone.yml

@@ -4,7 +4,7 @@ name: .net sonar
 
 steps:
   - name: .Net-SonarScanner
-    image: mcr.microsoft.com/dotnet/framework/sdk:4.8
+    image: sdk:3.5-windowsservercore-ltsc2019
     commands:
       - export PATH="$PATH:/root/.dotnet/tools"
       - dotnet tool install --global dotnet-sonarscanner