Try updating SDK

Author: Lanayx

.github/workflows/dotnetcore-ubuntu.yml

@@ -18,7 +18,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: '8.0.x'
+        dotnet-version: '9.0.300'
         include-prerelease: true
 
     - name: Install dotnet tools locally

.github/workflows/dotnetcore-windows.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Setup .NET
       uses: actions/setup-dotnet@v3
       with:
-        dotnet-version: '8.0.x'
+        dotnet-version: '9.0.300'
         include-prerelease: true
 
     - name: Install dotnet tools locally

global.json

@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": "8.0.403"
+    "version": "9.0.300"
   }
 }