[Fix] get version from _version.py

Author: johmedr

.github/workflows/publish-to-pypi.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Get package version
         id: getversion
         run: |
-           VERSION=$(sed -n 's/^version = "\(.*\)"/\1/p' pyproject.toml)
+           VERSION=$(sed -n 's/^__version__ = "\(.*\)"/\1/p' mpython/_version.py)
            echo "pyproject.toml version: $VERSION"
            git config user.name github-actions
            git config user.email [email protected]