use google-auth2.14.1 in tests #2568
Description
@daniel-sanche pointed out that the testing constraints with Python 3.9 now seems to require google-auth==2.35.0, and it would be great to be use a lower version number. I manually testing that simply requiring 2.14.1 there does NOT work.
It's curious that this constraint appears to come from google-api-core (essentially implemented even before 2024-10-28 ), even though before #2502, using google-auth==2.14.1 under Python 3.7 seems to have worked fine.
We should figure out whether/how to get the lower google-auth constraint to work for the generator tests. Maybe we need separate constraints file for sync and async, like google-api-core uses