REGTESTS: quic: fix a TLS stack usage

REGTESTS: quic: fix a TLS stack usage

This issue was reported in GH #3214 where quic/tls13_ssl_crt-list_filters.vtc
QUIC reg test was run without haproxy QUIC support due to OPENSSL_AWSLC enabled
featured.

This is due to the fact that when ssl/tls13_ssl_crt-list_filters.vtc has been
ported to QUIC the feature(OPENSSL) was silly replaced by feature(QUIC) leading
the script to be run even without QUIC support if OR'ed OPENSSL_AWSLC feature is
enabled.

A good method to port these feature() commands to QUIC would have been
to add a feature(QUIC) command seperated from the one used for the supported
TLS stacks identified by the original underlying ssl reg tests (in reg-tests/ssl).
This is what is done by this patch.

Thank you to @idl0r for having reported this issue.