Remove separate global.json

Author: bording

.github/workflows/run-scripts.yml

@@ -32,6 +32,7 @@ jobs:
       - uses: actions/setup-dotnet@v4
         with:
           global-json-file: global.json
+          dotnet-version: 9.0
       - uses: actions/setup-node@v4
         with:
           node-version: 20