Update up/download-artifact actions to v4

Author: arthurkehrwald

.github/workflows/build.yml

@@ -32,7 +32,7 @@ jobs:
       - run: |
           mkdir tmp
           cp -r Dependencies/${{ matrix.rid }} tmp
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: Dependencies
           path: tmp

.github/workflows/publish.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: dawidd6/action-download-artifact@v2
+      - uses: dawidd6/action-download-artifact@v4
         with:
           workflow: build
           run_id: ${{ github.event.client_payload.artifacts_run_id }}