anonymous_store_remediation.py updates (internetarchive#11084)

* Make script executable
* Update `db` import

Author: jimchamp

scripts/migrations/anonymous_store_remediation.py

@@ -6,11 +6,11 @@
 import argparse
 from pathlib import Path
 
-import db
 import web
 
 import infogami
 from openlibrary.config import load_config
+from openlibrary.core import db
 
 DEFAULT_CONFIG_PATH = "/olsystem/etc/openlibrary.yml"