chore: update actions/upload-artifact to v4 in ci

Author: Vid201

.github/workflows/ci.yml

@@ -71,7 +71,7 @@ jobs:
           make build-debug-mode
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: silius
           path: target/debug/silius