Steps to Reproduce

I don't know why, but I get httpxConnect Errors almost every time I run tests locally, this even happens with -m no_req.

While it was known while implementing this (#3407), that NoRequest classes can still make requests indirectly (e.g. calling a fixture which makes requests), we need to catch more violating classes, such as TestAnimationNoRequest, whose animation fixture makes requests.

Expected behaviour

No requests should be made

Actual behaviour

requests are made

Operating System

invariant

Version of Python, python-telegram-bot & dependencies

irrelevant

Relevant log output

Additional Context

No response