Fix uv version output in pypi-publish workflow

uv version outputs "project-name version" (e.g. "fastapi-gcp-tasks
0.1.1"), not just the version string. Use --short flag to get the
bare version for comparison against the git tag.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: rushilsrivastava

.github/workflows/pypi-publish.yaml

@@ -20,7 +20,7 @@ jobs:
       - name: Validate version
         run: |
           TAG_VERSION=${GITHUB_REF#refs/tags/v}
-          PYPROJECT_VERSION=$(uv version)
+          PYPROJECT_VERSION=$(uv version --short)
           echo "Tag version: $TAG_VERSION"
           echo "Pyproject version: $PYPROJECT_VERSION"
           if [ "$TAG_VERSION" != "$PYPROJECT_VERSION" ]; then