Bump actions/download-artifact from 4.2.1 to 4.3.0 in the actions group (python#237)

Author: dependabot[bot]

.github/workflows/source-and-docs-release.yml

@@ -162,7 +162,7 @@ jobs:
       - build-source
     steps:
       - name: "Download the source artifacts"
-        uses: actions/download-artifact@95815c38cf2ff2164869cbab79da8d1f422bc89e # v4.2.1
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           name: source