ci: Change gh-action-pypi to v1.12.4

Author: BrandonGroth

.github/workflows/pypi.yml

@@ -77,7 +77,7 @@ jobs:
                   path: dist
 
             - name: Upload to Test PyPI
-              uses: pypa/gh-action-pypi-publish@15c56dba361d8335944d31a2ecd17d700fc7bcbc # v1.12.2
+              uses: pypa/gh-action-pypi-publish@76f52bc884231f62b9a034ebfe128415bbaabdfc # v1.12.4
               with:
                   repository-url: https://test.pypi.org/legacy/