remove explicit token in lieu of trusted publisher attestation

Author: zacharyburnett

.github/workflows/build.yml

@@ -11,5 +11,3 @@ jobs:
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/publish_pure_python.yml@8c0fde6f7e926df6ed7057255d29afa9c1ad5320  # v1.16.0
     with:
       upload_to_pypi: ${{ (github.event_name == 'release') && (github.event.action == 'released') }}
-    secrets:
-      pypi_token: ${{ secrets.PYPI_PASSWORD_STSCI_MAINTAINER }}