fix: initialize xpack before PostgreSQL denylist test imports - #1442

No file matched to [/home/runner/work/SQLBot/SQLBot/**/*requirements*.txt,/home/runner/work/SQLBot/SQLBot/**/*requirements*.in,/home/runner/work/SQLBot/SQLBot/**/*constraints*.txt,/home/runner/work/SQLBot/SQLBot/**/*constraints*.in,/home/runner/work/SQLBot/SQLBot/**/pyproject.toml,/home/runner/work/SQLBot/SQLBot/**/uv.lock,/home/runner/work/SQLBot/SQLBot/**/*.py.lock]. The cache will never get invalidated. Make sure you have checked out the target repository and configured the cache-dependency-glob input correctly.

Empty workdir detected. This may cause unexpected behavior. You can enable ignore-empty-workdir to mute this warning.