Update expected ALPN token in QuicDispatcherWriteBlockedListTest.

This is so that when cl/290840338 reorders QUIC versions, QuicDispatcherWriteBlockedListTests (running with CurrentSupportedVersions().front() only) can still pass.

gfe-relnote: n/a (test-only change)
PiperOrigin-RevId: 297568815
Change-Id: I39a6e14ada0e21d57d2cb090b0c5c11837d49f9b

quic/core/quic_dispatcher_test.cc

diff --git a/quic/core/quic_dispatcher_test.cc b/quic/core/quic_dispatcher_test.cc
index 66b9e2e..973e2e3 100644
--- a/quic/core/quic_dispatcher_test.cc
+++ b/quic/core/quic_dispatcher_test.cc
@@ -1388,8 +1388,7 @@
     QuicSocketAddress client_address(QuicIpAddress::Loopback4(), 1);
 
     EXPECT_CALL(*dispatcher_,
-                CreateQuicSession(_, client_address,
-                                  quiche::QuicheStringPiece("hq"), _))
+                CreateQuicSession(_, client_address, Eq(ExpectedAlpn()), _))
         .WillOnce(Return(ByMove(CreateSession(
             dispatcher_.get(), config_, TestConnectionId(1), client_address,
             &helper_, &alarm_factory_, &crypto_config_,
@@ -1405,8 +1404,7 @@
     ProcessPacket(client_address, TestConnectionId(1), true, SerializeCHLO());
 
     EXPECT_CALL(*dispatcher_,
-                CreateQuicSession(_, client_address,
-                                  quiche::QuicheStringPiece("hq"), _))
+                CreateQuicSession(_, client_address, Eq(ExpectedAlpn()), _))
         .WillOnce(Return(ByMove(CreateSession(
             dispatcher_.get(), config_, TestConnectionId(2), client_address,
             &helper_, &alarm_factory_, &crypto_config_,