Help wanted: Fix tests in go 1.17-19

[jpillora]

Help wanted!

At a high level, I want to tests to pass against go1. 17,18,19 in CI

Easy fix, which i'd consider is just to mint modern certs in test/e2e/tls/ (which don't use x509 common name)

Better fix, in an init function in the TLS tests, i'd like to use go's x509/crypto packages to programmatically do the "easy fix" above. the benefit of this is we get certs-as-code which allows us to easily test various TLS settings

Please comment here if you'd like to work on it