Bump upload artifact

Author: fcollonval

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10']
+        python-version: ['3.9', '3.10', '3.13']
     steps:
     - name: Checkout
       uses: actions/checkout@v4
@@ -61,7 +61,7 @@ jobs:
         pip uninstall -y "jupyterlab_git" jupyterlab
 
     - name: Upload extension packages
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: ${{ matrix.python-version == '3.10' }}
       with:
         name: extension-artifacts