Avoid reuploading unchanged Addressables bundles (#7175)

ci/github_actions/upload_addressables.sh

@@ -44,13 +44,26 @@ echo "Target: s3://$DO_BUCKET/addressables/$BUILD_TARGET/"
 export AWS_ACCESS_KEY_ID="$ACCESS_KEY_ID"
 export AWS_SECRET_ACCESS_KEY="$SECRET_KEY"
 
-# Sync bundles to Spaces
-# --delete removes files in destination that don't exist in source
-# --acl public-read makes files publicly accessible
+# Sync bundles to Spaces. Addressable bundle filenames include content hashes, so a
+# same-sized existing bundle is already the same content. Use --size-only to avoid
+# re-uploading every rebuilt bundle just because Unity gave it a fresh local mtime.
+# Metadata files keep stable names, so sync them again without --size-only below.
+#
+# --delete removes files in destination that don't exist in source.
+# --acl public-read makes files publicly accessible.
 aws s3 sync "$SERVER_DATA" "s3://$DO_BUCKET/addressables/$BUILD_TARGET/" \
     --endpoint-url "$DO_ENDPOINT" \
     --acl public-read \
+    --size-only \
     --delete
 
+aws s3 sync "$SERVER_DATA" "s3://$DO_BUCKET/addressables/$BUILD_TARGET/" \
+    --endpoint-url "$DO_ENDPOINT" \
+    --acl public-read \
+    --exclude "*" \
+    --include "*.bin" \
+    --include "*.hash" \
+    --include "*.json"
+
 echo "Addressables upload complete"
 echo "Files available at: https://assets.eagle0.net/addressables/$BUILD_TARGET/"