refactor: make PyPI publish workflow repository-independent

Remove hardcoded package URL from environment configuration to make
the workflow reusable across repositories. The URL is optional for
trusted publishing functionality.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: codebydivine

.github/workflows/pypi-publish.yml

@@ -47,7 +47,6 @@ jobs:
     runs-on: ubuntu-latest
     environment:
       name: pypi
-      url: https://pypi.org/p/divine-thegraph-token-api
     permissions:
       id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing