Update python-pypi-test.yml

[mohammadamint]

• The on section now includes the tags event trigger, which will trigger the workflow whenever a tag is pushed to the repository.
• The pull_request event trigger has been removed since it was causing the OIDC token retrieval issue from forks.

With these changes, the workflow will no longer encounter the OIDC token retrieval failure when triggered by pull requests from forks. Instead, it will only be triggered by tag creation events or pushes to the specified branches.