Wrong example in documentation

[sann3]

Environment details

1. API: GCS
2. OS type and version: all
3. Java version: 8
4. google-cloud-java version(s): 1.87.0

Steps to reproduce

1. Goto https://github.com/googleapis/google-cloud-java/blob/master/google-cloud-clients/google-cloud-storage/src/main/java/com/google/cloud/storage/Storage.java
2. check the documentation of the following method
   Page<Blob> list(String bucket, BlobListOption... options);
3. Iterator<Blob> blobIterator = blobs.iterateAll(); is not correct
4. It should be like
   Iterator<Blob> blobIterator = blobs.iterateAll().iterator();