tests fail after 2028-07-07

[bmwiedemann]

While working on reproducible builds for openSUSE, I found that
our python-aioquic 1.2.0 package fails tests after 2028-07-07, because tests/ssl_cert.pem expired.

Please mock the current time or use test certs that are valid for 1000y.

Background:
As part of my work on reproducible builds for openSUSE, I check that software still gives identical build results in the future.
The usual offset is +16 years, because that is how long I expect some software will be used in some places.
This showed up failing tests in our package build.
See https://reproducible-builds.org/ for why this matters.

[jlaine]

This is a fair point. Our tests uses a mix of certificates which are generated on the fly and this hard-coded certificate. I think I'd like to try switching to "only use generated certs".

[bmwiedemann]

That is also a good solution.