chore: automate pypi/testpypi release by tag pattern

[aiagate]

Description

Following the implementation of dynamic versioning, this PR automates the selection of the release target (PyPI or TestPyPI) based on the Git tag pattern.

Key Changes

• `publish-prod.yml`: Updated to trigger only on stable version tags (e.g., `v0.1.0`). Pattern: `v[0-9].[0-9].[0-9]*`.
• `publish-test.yml`: Updated to trigger on pre-release tags (e.g., `v0.1.0rc1`, `v0.1.0a1`, `v0.1.0b1`).
• Project URL: Fixed the TestPyPI project URL to point to `flow-res` instead of `apopy`.

Tag Naming Convention

• TestPyPI: Use tags like `v0.1.0rc1`, `v0.1.0b1`, or `v0.1.0a1`.
• PyPI (Production): Use tags like `v0.1.0`.

Both workflows still support manual execution via `workflow_dispatch`.