[BUG] BGM scrape error

[alphatownsman]

To Reproduce

nm cat https://bgm.tv/subject/9437
[+] Creating 4/4
 ✔ Container neodb-app-typesense-1  Running                                                                                                              0.0s
 ✔ Container neodb-app-redis-1      Running                                                                                                              0.0s
 ✔ Container neodb-app-neodb-db-1   Running                                                                                                              0.0s
 ✔ Container neodb-app-takahe-db-1  Running                                                                                                              0.0s
Fetching from <Bangumi: https://bgm.tv/subject/9437>
Traceback (most recent call last):
  File "/neodb/manage.py", line 22, in <module>
    main()
  File "/neodb/manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/neodb-venv/lib/python3.12/site-packages/django/core/management/__init__.py", line 442, in execute_from_command_line
    utility.execute()
  File "/neodb-venv/lib/python3.12/site-packages/django/core/management/__init__.py", line 436, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/neodb-venv/lib/python3.12/site-packages/django/core/management/base.py", line 412, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/neodb-venv/lib/python3.12/site-packages/django/core/management/base.py", line 458, in execute
    output = self.handle(*args, **options)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/neodb/catalog/management/commands/cat.py", line 46, in handle
    resource = site.scrape()
               ^^^^^^^^^^^^^
  File "/neodb/catalog/sites/bangumi.py", line 227, in scrape
    isbn_type, isbn = detect_isbn_asin(v)
                      ^^^^^^^^^^^^^^^^^^^
  File "/neodb/catalog/book/utils.py", line 56, in detect_isbn_asin
    n = re.sub(r"[^0-9A-Z]", "", s.upper())
                                 ^^^^^^^
AttributeError: 'list' object has no attribute 'upper'
exit status 1

• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[alphatownsman]

@j1g5awi would you help take a look at this?