[Fix] Fix setuptools-scm version resolution for rc tags (#22165)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Baizhou Zhang <sobereddiezhang@gmail.com>

.github/workflows/release-pypi-nightly.yml

@@ -54,10 +54,7 @@ jobs:
           cd python
           cp ../README.md ../LICENSE .
 
-          # Parse git describe output to get latest tag
-          # Use same command as pyproject.toml to ensure version consistency
-          DESC=$(git tag --list --sort=-version:refname 'v*.*.*' | head -1 | xargs git describe --tags --long 2>/dev/null || echo 'v0.0.0-0-g0000000')
-          TAG=$(echo "$DESC" | cut -d- -f1)
+          TAG=$(python3 ../python/tools/get_version_tag.py)
           HASH="g$(git rev-parse --short HEAD)"
           BUILD_DATE=$(date -u +%Y%m%d)
 

.github/workflows/release-pypi-pr.yml

@@ -34,12 +34,7 @@ jobs:
       - name: Generate PR wheel version
         id: gen_version
         run: |
-          # Get base version from the latest v*.*.* git tag directly
-          # Note: We cannot use setuptools_scm here because the [tool.setuptools_scm]
-          # config (with custom git_describe_command) lives in python/pyproject.toml,
-          # not at the repo root. Without that config, setuptools_scm falls back to
-          # default git describe which finds gateway-* tags instead of v*.*.* release tags.
-          LATEST_TAG=$(git tag --list --sort=-version:refname 'v*.*.*' | head -1)
+          LATEST_TAG=$(python3 python/tools/get_version_tag.py)
           BASE_VERSION=${LATEST_TAG#v}
           echo "Latest release tag: ${LATEST_TAG}"