REGTEST: make the HTTP rules test compatible with HTTP/2 as well

The HTTP rules test now runs an H1 and an H2 client. Since the H2 one
requires the "proto" directive on the bind line, a new file has been
created requiring version 1.9 and the previous one was marked as usable
below 1.9 so that it's skipped by default but still usable when testing
backports.
2 files changed