I wondered if it would be backwards compatible to make `pkgutil.get_data()` delegate to `importlib.resources.read_binary()`. It isn't, because `pkgutil.get_data()` accepts a relative path for the resource, and `importlib.resources.read_binary()` accepts only a filename. That is, you can do:

    pkgutil.get_data(__name__, "subdir/some_file")

but not:

    importlib.resources.read_binary(__name__, "subdir/some_file")

The latter fails with:

      File "/opt/bb/lib/python3.10/importlib/_common.py", line 34, in normalize_path
        raise ValueError(f'{path!r} must be only a file name')