Give permissions to depot downloader

Author: sunnamed434

.github/workflows/Update.Unturned.Redist.yaml

@@ -123,6 +123,7 @@ jobs:
         id: compare_manifest
         run: |
           MANIFEST_FILE="redist/redist-manifests/.manifest.${{ matrix.variant }}.txt"
+          chmod +x depot_downloader/DepotDownloader
           manifest_output=$(depot_downloader/DepotDownloader \
             -app $APP_ID \
             -depot $APP_DEPOT_ID \