Enable checkout treeless partial clone

actions/checkout#1396

Author: gitfool

.github/workflows/ci.yaml

@@ -25,8 +25,8 @@ jobs:
         uses: actions/checkout@v4.1.1
         with:
           fetch-depth: 0
+          filter: tree:0
           show-progress: false
-          submodules: recursive
 
       - name: Install dotnet
         uses: actions/setup-dotnet@v3.2.0