[up] framework .NET 9 set

Author: i4004

.github/workflows/codeql-analysis.yml

@@ -52,9 +52,9 @@ jobs:
           # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
       - name: Setup .NET
-        uses: actions/setup-dotnet@v1
+        uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 6.0.x
+          dotnet-version: 9.0.x
 
       # Build
       - run: dotnet build src/Simplify.sln -v minimal