CI: update download-artifact

Author: mgeier

.github/workflows/pd-externals.yml

@@ -99,17 +99,17 @@ jobs:
           # https://github.com/actions/checkout/issues/1169
           set-safe-directory: ${{ github.workspace }}
       - name: Retrieve Linux externals
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v5
         with:
           name: linux-externals
           path: apf_example
       - name: Retrieve macOS external
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v5
         with:
           name: macos-externals
           path: apf_example
       - name: Retrieve Windows external
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v5
         with:
           name: windows-externals
           path: apf_example