Bump actions/download-artifact from 4 to 6 (#2352)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/pypi-release.yml

@@ -55,7 +55,7 @@ jobs:
         name: Install Python
         with:
           python-version: "3.11"
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           name: releases
           path: dist
@@ -84,7 +84,7 @@ jobs:
     if: github.event_name == 'release'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           name: releases
           path: dist