Hotfix CI. (#59)

Author: felixfontein

.github/workflows/ci-cd.yml

@@ -474,7 +474,7 @@ jobs:
         --skip-missing-interpreters false
 
     - name: Store the Python package distributions
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: python-package-distributions
         # NOTE: Exact expected file names are specified here
@@ -652,7 +652,7 @@ jobs:
       shell: bash
 
     - name: Download all the dists
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: python-package-distributions
         path: dist/
@@ -784,7 +784,7 @@ jobs:
 
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: python-package-distributions
         path: dist/
@@ -814,7 +814,7 @@ jobs:
 
     steps:
     - name: Download all the dists
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: python-package-distributions
         path: dist/