ci: draft before release

Author: fxliang

.github/workflows/release-ci.yml

@@ -107,6 +107,7 @@ jobs:
         uses: softprops/action-gh-release@v2
         if: ${{ github.repository == 'rime/weasel' && startsWith(github.ref, 'refs/tags/') }}
         with:
+          draft: true
           files: |
             ./output/archives/weasel*.exe
             ./output/archives/debug_symbols.7z