osxphotos compare doesn't work with iPhoto library

[RhetTbull]

│ /Users/rhet/.local/share/uv/tools/osxphotos/lib/python3.13/site-packages/osxphotos/photosdb/phot │
│ osdb.py:145 in __init__                                                                          │
│                                                                                                  │
│    142 │   │                                                                                     │
│    143 │   │   # Check that we're not trying to open an iPhoto library                           │
│    144 │   │   if dbfile and is_iphoto_library(dbfile):                                          │
│ ❱  145 │   │   │   raise PhotosDBReadError(f"{dbfile} is an iPhoto library, not Photos")         │
│    146 │   │                                                                                     │
│    147 │   │   # Check OS version                                                                │
│    148 │   │   system = platform.system()                                                        │
╰──────────────────────────────────────────────────────────────────────────────────────────────────╯
PhotosDBReadError: code/osxphotos/tests/Test-iPhoto-9.6.1.photolibrary is an iPhoto library, not Photos