astropy: IERS_B file download failure: 404 error

Description

Hi, It seems like the URL used to download the IERS B table is down and gives a 404 error in a new virtual environment.

Expected behavior

I see some mention of adding fail-safe URLs in https://github.com/astropy/astropy-iers-data/issues/20, but not sure if there was a resolution for the IERS B tables?

How to Reproduce

# Put your Python code snippet here.
import astropy
from astropy.utils.iers import conf,IERS_A, IERS_A_URL, IERS_B, IERS_B_URL, IERS
from astropy.utils.data import download_file

print(astropy.__version__)
print(IERS_B_URL)
iers_b_file = download_file(IERS_B_URL, cache=True)

Output:

5.1
http://hpiers.obspm.fr/iers/eop/eopc04/eopc04_IAU2000.62-now

Attempting to download the IERS B table from the given URL gives the following error. HTTPError: HTTP Error 404: Not Found

Conversely if you attempt this in an old virtual environment (which has the file cached), I don’t get this error. The analogous IERS_A_URL points to a resource that is still available.

Versions

Windows-10-10.0.19045-SP0
Python 3.9.12 (tags/v3.9.12:b28265d, Mar 23 2022, 23:52:46) [MSC v.1929 64 bit (AMD64)]
astropy 5.1
Numpy 1.22.3
pyerfa 2.0.0.1
Scipy 1.8.1
Matplotlib 3.5.2