Fix GitHub Actions ref check and update packaging license metadata (#98)

Summary:
This PR refines CI logic and corrects packaging metadata.

- Adjust GitHub Actions workflow to consistently use `github.ref_type` for tag detection in nightly publish job.
- Update `pyproject.toml` to use canonical `license = "BSD-3-Clause"` and include `license-files` for proper distribution metadata.

These changes improve release correctness for both nightly and stable builds.

Pull Request resolved: #98

Reviewed By: sfzhu93

Differential Revision: D82171592

Pulled By: FindHao

fbshipit-source-id: d98d0fc11717ad455d78448b5029eda73973427f

Author: FindHao

.github/workflows/nightly-pypi.yml

@@ -40,7 +40,7 @@ jobs:
 
       - name: Build sdist/wheel
         run: |
-          if [ "${GITHUB_REF_TYPE}" != "tag" ]; then
+          if [ "${{ github.ref_type }}" != "tag" ]; then
             export SETUPTOOLS_SCM_PRETEND_VERSION=${{ steps.ver.outputs.NVER }}
           fi
           python -m build

pyproject.toml

@@ -14,7 +14,8 @@ readme = "README.md"
 authors = [
     { name="Yueming Hao", email="yhao@meta.com" },
 ]
-license = { text = "BSD-3-Clause" }
+license = "BSD-3-Clause"
+license-files = ["LICENSE*"]
 
 
 [project.optional-dependencies]