use sccache

.github/workflows/ci.yml

@@ -221,7 +221,7 @@ jobs:
         shell: powershell
       - name: build
         run: |
-          python -m venv venv & venv\Scripts\activate & pip install -r requirements.txt & python main.py --noninteractive --skip-compiler-install --minifi-options="%WINDOWS_MINIFI_OPTIONS%"
+          python -m venv venv & venv\Scripts\activate & pip install -r requirements.txt & python main.py --noninteractive --skip-compiler-install --minifi-options="%WINDOWS_MINIFI_OPTIONS%" --cmake-options="-DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache"
         shell: cmd
         working-directory: bootstrap
       - name: Save cache