Documentation is broken since 2.31+

[GergelyKalmar]

The latest URL of the documentation points to 2.31.0 (see https://googleapis.dev/python/google-auth/latest/):

Accordingly, the following URLs give a 404:

• https://googleapis.dev/python/google-auth/2.31.0/
• https://googleapis.dev/python/google-auth/2.32.0/
• https://googleapis.dev/python/google-auth/2.33.0/
• https://googleapis.dev/python/google-auth/2.34.0/

The sphinx inventory file seems to be missing since version 2.31+ too:

wget https://googleapis.dev/python/google-auth/2.30.0/objects.inv  # works
wget https://googleapis.dev/python/google-auth/2.31.0/objects.inv  # does not work