Rename QUIC connection ID to server connection ID, part 2

This is part of a larger body of work required to enable client connection IDs.

gfe-relnote: n/a, code-rename-only change
PiperOrigin-RevId: 250386523
Change-Id: I20d5a688e040791eefda378f5246adfa770cef61
diff --git a/quic/core/quic_packet_creator.h b/quic/core/quic_packet_creator.h
index c9e31ac..a7b1d5c 100644
--- a/quic/core/quic_packet_creator.h
+++ b/quic/core/quic_packet_creator.h
@@ -225,7 +225,7 @@
   void SetServerConnectionIdIncluded(
       QuicConnectionIdIncluded server_connection_id_included);
 
-  // Update the connection ID used in outgoing packets.
+  // Update the server connection ID used in outgoing packets.
   void SetServerConnectionId(QuicConnectionId server_connection_id);
 
   // Sets the encryption level that will be applied to new packets.