Update actions/download-artifact action to v5 (#445)

Author: renovate[bot]

.github/workflows/publish-javadoc.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Delete current javadoc
         run: rm -rf docs
       - name: Download new javadoc
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           path: ./
       - name: Commit