ci: update actions/upload download artifact

Author: Wenzel

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
         shell: bash
 
       - name: Upload Windows release artefact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: checksec.exe
           path: dist/checksec.exe
@@ -125,7 +125,7 @@ jobs:
       - uses: actions/checkout@v3
 
       # download artifacts
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: checksec.exe