Bump pypa/gh-action-pypi-publish in /.github/workflows

Bumps [pypa/gh-action-pypi-publish](https://github.com/pypa/gh-action-pypi-publish) from 1.0.0a0 to 1.13.0.
- [Release notes](https://github.com/pypa/gh-action-pypi-publish/releases)
- [Commits](pypa/gh-action-pypi-publish@v1.0.0a0...v1.13.0)

---
updated-dependencies:
- dependency-name: pypa/gh-action-pypi-publish
  dependency-version: 1.13.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/test-pypi.yml

@@ -19,7 +19,7 @@ jobs:
         version=$(poetry version | awk '{print $2}') &&
         poetry version $version.dev.$(date +%s)
     - run: poetry build
-    - uses: pypa/gh-action-pypi-publish@v1.0.0a0
+    - uses: pypa/gh-action-pypi-publish@v1.13.0
       with:
         user: __token__
         password: ${{ secrets.TEST_PYPI_TOKEN }}