try package manager dotnet

.gitea/workflows/build.yaml

@@ -13,10 +13,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup .NET SDK
-        uses: actions/setup-dotnet@v4
-        with:
-          dotnet-version: '10.0.x'
-          cache: true
+        run: apk add dotnet10-sdk
 
       - name: Restore Dependencies
         run: dotnet restore