ci: disable ccache

Author: gf712

.github/workflows/premerge.yml

@@ -22,7 +22,7 @@ jobs:
         sudo apt install libmlir-20-dev mlir-20-tools
 
     - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DENABLE_CACHE=OFF
 
     - name: Build
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}