Run interop tests on feature/quic-server branch

We currently run interop tests as a client only from the master branch.
While we are developing quic-server it would be beneficial to also

Run interop tests on feature/quic-server branch

We currently run interop tests as a client only from the master branch.
While we are developing quic-server it would be beneficial to also get
interop test results from the quic-server branch run as both a client
and a server, until such time as the feature branch is merged. Add
building and running of a container in the test harness to our CI set

Reviewed-by: Saša Nedvědický <sashan@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/26090)

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