MINOR: quic: add HTX EOM on request end

Set the HTX EOM flag on RX the app layer. This is required to notify
about the end of the request for the stream analyzers, else the request
channel never goes to MSG_DONE state.
diff --git a/src/hq_interop.c b/src/hq_interop.c
index dc1e115..9d0d566 100644
--- a/src/hq_interop.c
+++ b/src/hq_interop.c
@@ -9,7 +9,7 @@
 #include <haproxy/mux_quic-t.h>
 #include <haproxy/stream.h>
 
-static int hq_interop_decode_qcs(struct qcs *qcs, void *ctx)
+static int hq_interop_decode_qcs(struct qcs *qcs, int fin, void *ctx)
 {
 	struct buffer *rxbuf = &qcs->rx.buf;
 	struct htx *htx;
@@ -54,6 +54,9 @@
 	b_del(rxbuf, b_data(rxbuf));
 	b_free(&htx_buf);
 
+	if (fin)
+		htx->flags |= HTX_FL_EOM;
+
 	return 0;
 }