REGTESTS: quic: new_del_ssl_cafile.vtc supported by QUIC

REGTESTS: quic: new_del_ssl_cafile.vtc supported by QUIC

ssl/new_del_ssl_cafile.vtc was rename to ssl/new_del_ssl_cafile.vtci
to produce a common part runnable both for QUIC and TCP connections.
Then new_del_ssl_cafile.vtc files were created both under ssl and quic directories
to call this .vtci file with correct VTC_SOCK_TYPE environment values
("quic" for QUIC connection and "stream" for TCP connections);