Use .NET 9 to build documentation

Author: bfren

.github/workflows/build-docs.yml

@@ -16,13 +16,13 @@ jobs:
       name: Setup .NET
       uses: actions/setup-dotnet@v5
       with:
-        dotnet-version: 10.0.x
+        dotnet-version: 9.0.x
     -
       name: Prepare - Build Source
       run: |
         dotnet build src/Rqlite.Client/Rqlite.Client.csproj \
           --configuration Debug \
-          --framework net10.0
+          --framework net9.0
     -
       name: A - Build Documentation
       uses: bfren/docfx-action@v4