Revert "don't clean"

This reverts commit 5af3e42.

Author: JalinWang

.github/workflows/05-windows-build.yml

@@ -48,7 +48,6 @@ jobs:
         uses: actions/checkout@v6
         with:
           submodules: recursive
-          clean: false
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -87,7 +86,8 @@ jobs:
           $env:CMAKE_BUILD_PARALLEL_LEVEL = "$env:NPROC"
           python -m pip install -v . `
             --no-build-isolation `
-            --config-settings='cmake.define.BUILD_TOOLS=ON'
+            --config-settings='cmake.define.BUILD_TOOLS=ON' `
+            -Cbuild-dir='C:\actions-runner\_work\zvec\build_ci'
         shell: powershell
 
       - name: Run C++ Tests