bump download-artifact (#147)

Author: kacperf531

.github/workflows/publish-to-pypi.yml

@@ -42,7 +42,7 @@ jobs:
 
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: python-package-distributions
         path: dist/

.github/workflows/publish-to-testpypi.yml

@@ -45,7 +45,7 @@ jobs:
 
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: python-package-distributions
         path: dist/