change a QUIC_BUG_IF to QUICHE_DCHECK_NE in QuicConnection.

QUIC_BUGs will block Chrome dev release but QUICHE_DCHECK won't. Given the triggering condition is harmless but triggers alerts in Chrome canary channel and some dev channel and blocking the new release, so just downgrade it.

PiperOrigin-RevId: 863397883

quiche/quic/core/quic_connection.cc

diff --git a/quiche/quic/core/quic_connection.cc b/quiche/quic/core/quic_connection.cc
index db136aa..5c7ea12 100644
--- a/quiche/quic/core/quic_connection.cc
+++ b/quiche/quic/core/quic_connection.cc
@@ -3006,8 +3006,7 @@
   // will be generated on this path.
   // TODO(danzh) fix SendPathResponse() to respond to probes from a different
   // client port with non-Zero client CID.
-  QUIC_BUG_IF(failed to find on path connection ids,
-              perspective_ == Perspective::IS_CLIENT)
+  QUICHE_DCHECK_NE(perspective_, Perspective::IS_CLIENT)
       << "Fails to find on path connection IDs";
   return false;
 }