recipe bundler: fix recipe_bundles error

Change-Id: I2a93eb5b6e15ce105b8bff26c4cd320f000f6d98
Bug: b:203003836
Reviewed-on: https://chromium-review.googlesource.com/c/codecs/infra/+/3245863
Reviewed-by: Bharath Chandra Elluru <ellurubharath@google.com>
Commit-Queue: Roberto Alanis Baez <alanisbaez@google.com>