BUG/MINOR: quic: Do not request h3 clients to close its unidirection streams

BUG/MINOR: quic: Do not request h3 clients to close its unidirection streams

It is forbidden to request h3 clients to close its Control and QPACK unidirection
streams. If not, the client closes the connection with H3_CLOSED_CRITICAL_STREAM(0x104).
Perhaps this could prevent some clients as Chrome to come back for a while.

But at quic_conn level there is no mean to identify the streams for which we cannot
send STOP_SENDING frame. Such a possibility is even not mentionned in RFC 9000.
At this time there is no choice than stopping sending STOP_SENDING frames for
all the h3 unidirectional streams inspecting the ->app_opps quic_conn value.

Must be backported to 2.7 and 2.6.