Bump pypa/gh-action-pypi-publish from 1.6.4 to 1.8.1 (#55)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/check.yml

@@ -105,7 +105,7 @@ jobs:
       - name: Build sdist and wheel
         run: python -m build -s -w . -o dist
       - name: Publish to PyPi
-        uses: pypa/gh-action-pypi-publish@v1.6.4
+        uses: pypa/gh-action-pypi-publish@v1.8.1
         with:
           skip_existing: true
           user: __token__