Fix PyPI trusted publishing for the release workflow

[Copilot]

The build-and-publish release job was failing after a successful package build because PyPI rejected the GitHub OIDC token as an invalid-publisher. The workflow was not emitting the environment claim expected by the repository’s trusted publisher configuration.

• Release workflow

  • Add the pypi environment to the build-and-publish job in .github/workflows/release.yml.
  • This causes the OIDC token used by pypa/gh-action-pypi-publish to include the environment claim required by PyPI trusted publishing.

• Impact

  • Keeps the build path unchanged.
  • Restricts the fix to the release/publish configuration that was failing.

jobs:
  build-and-publish:
    runs-on: ubuntu-latest
    environment: pypi

[AHartmaier]

Fix for build-and-publish workflow