[CI][AppVeyor] Fix build issue (#692)

Author: bagusnl

appveyor.yml

@@ -32,7 +32,7 @@ for:
           
         echo Install dotnet sdk
         
-        choco install dotnet-sdk --pre
+        choco install dotnet-sdk --version=9.0.102
         
         dotnet --version
         
@@ -139,7 +139,7 @@ for:
 
         echo Install dotnet sdk
 
-        choco install dotnet-sdk --pre
+        choco install dotnet-sdk --version=9.0.102
 
         dotnet --version
 
@@ -247,7 +247,7 @@ for:
           
           echo Install dotnet sdk
           
-          choco install dotnet-sdk --pre
+          choco install dotnet-sdk --version=9.0.102
           
           dotnet --version
           
@@ -329,4 +329,4 @@ for:
           - [email protected]
         on_build_success: true
         on_build_failure: true
-        on_build_status_changed: true
+        on_build_status_changed: true