Fix regex for version extraction in CI workflow

Signed-off-by: Nicholas Pace <segfly@users.noreply.github.com>

Author: segfly

.github/workflows/ci-publish.yml

@@ -56,7 +56,7 @@ jobs:
 
           # Ensure the version in pyproject.toml matches the git tag
           GIT_TAG_VERSION=${GITHUB_REF#refs/tags/v}
-          PYPROJECT_VERSION=$(grep -Po '(?<=^version = ")[^"]*' pyproject.toml)
+          PYPROJECT_VERSION=$(grep -Eo '^version\s*=\s*"[0-9.]*' pyproject.toml | cut -d'"' -f2)
           if [[ "${GITHUB_REF#refs/tags/v}" != "$PYPROJECT_VERSION" ]]; then
             echo "::error::Version mismatch! Git tag ($GIT_TAG_VERSION) doesn't match pyproject.toml version ($PYPROJECT_VERSION)"
             exit 1
@@ -128,4 +128,4 @@ jobs:
         if: ${{ !env.ACT }}
         uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e #v1.13.0
         with:
-          repository-url: ${{ needs.prepublish.outputs.repository_url }}
+          repository-url: ${{ needs.prepublish.outputs.repository_url }}