fix: 添加磁盘空间清理步骤，解决 GitHub Actions 空间不足问题

Author: hgmzhn

.github/workflows/docker-build-push.yml

@@ -31,6 +31,18 @@ jobs:
         build_type: [cpu, gpu]
 
     steps:
+      - name: Free Disk Space
+        run: |
+          echo "Disk space before cleanup:"
+          df -h
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /usr/local/lib/android
+          sudo rm -rf /opt/ghc
+          sudo rm -rf /opt/hostedtoolcache/CodeQL
+          sudo docker image prune --all --force
+          echo "Disk space after cleanup:"
+          df -h
+      
       - name: Checkout repository
         uses: actions/checkout@v4