[chore] Disable ccache for sgl-kernel release (#13541)

.github/workflows/release-whl-kernel.yml

@@ -45,6 +45,8 @@ jobs:
           cd sgl-kernel
           chmod +x ./build.sh
           ./build.sh "${{ matrix.python-version }}" "${{ matrix.cuda-version }}" ${{ matrix.arch == 'aarch64' && 'aarch64' || '' }}
+        env:
+          USE_CCACHE: 0
 
       - name: Upload to PyPI
         working-directory: sgl-kernel
@@ -136,6 +138,8 @@ jobs:
           cd sgl-kernel
           chmod +x ./build.sh
           ./build.sh "${{ matrix.python-version }}" "${{ matrix.cuda-version }}" ${{ matrix.arch == 'aarch64' && 'aarch64' || '' }}
+        env:
+          USE_CCACHE: 0
 
       - name: Upload artifacts
         uses: actions/upload-artifact@v4