S3 blobstore requires nx-settings-read privilege

I noticed when I tried to create an S3 blobstore with nx-blobstore-all privilege, I got an error (see attached) that nx-settings-read was also required. This seems to be because of the Region and Signature Version fields.

After checking with the team, we decided this is a bug. The fields are just configuration possibilities not directly related to settings:read and the other options it provides.