Replace an include in quic_types.h.

This header does not need to include quic_containers.h. Remove it and
include absl's string_view.h, which is needed, instead. This is a
simple refactor with no intended behavior change.

PiperOrigin-RevId: 424388214

quic/core/quic_types.h

diff --git a/quic/core/quic_types.h b/quic/core/quic_types.h
index 200e843..6960316 100644
--- a/quic/core/quic_types.h
+++ b/quic/core/quic_types.h
@@ -13,11 +13,11 @@
 #include <vector>
 
 #include "absl/container/inlined_vector.h"
+#include "absl/strings/string_view.h"
 #include "quic/core/quic_connection_id.h"
 #include "quic/core/quic_error_codes.h"
 #include "quic/core/quic_packet_number.h"
 #include "quic/core/quic_time.h"
-#include "quic/platform/api/quic_containers.h"
 #include "quic/platform/api/quic_export.h"
 #include "quic/platform/api/quic_flags.h"