Update deploy_testpypi.yml

Author: aven90

.github/workflows/deploy_testpypi.yml

@@ -47,7 +47,7 @@ jobs:
       - name: Retrieve release dist
         uses: actions/download-artifact@v4
         with:
-          name: release-dists
+          name: release-dist
           path: dist/
 
       - name: Publish package distributions to TestPyPI