Upgrade to requests >= 2.30, urllib3 >= 2

[kba]

The 2.30 release of requests is now based on the urllib3 release 2.0, which brought some breaking changes with it.

For now, I've pinned requests to < 2.30 because google-auth and requests_unixsocket require an older urllib3 and requests_unixsocket (there is an umerged PR https://github.com/msabramo/requests-unixsocket/pull/69 for that).