chore(actions): update pypa/gh-action-pypi-publish action to v1.8.4

Author: renovate[bot]

.github/workflows/prerelease.yml

@@ -80,7 +80,7 @@ jobs:
         name: built-artifacts
         path: dist/
 
-    - uses: pypa/gh-action-pypi-publish@v1.6.4
+    - uses: pypa/gh-action-pypi-publish@v1.8.4
       with:
         user: ${{ secrets.PRIVATE_PYPI_USERNAME }}
         password: ${{ secrets.PRIVATE_PYPI_PASSWORD }}

.github/workflows/release.yml

@@ -69,7 +69,7 @@ jobs:
         name: built-artifacts
         path: dist/
 
-    - uses: pypa/gh-action-pypi-publish@v1.6.4
+    - uses: pypa/gh-action-pypi-publish@v1.8.4
       with:
         user: __token__
         password: ${{ secrets.PYPI_API_TOKEN }}