test: fix default value of retry_interval in test case

apps/emqx/test/emqx_config_SUITE.erl

@@ -444,7 +444,7 @@ zone_global_defaults() ->
                 peer_cert_as_username => disabled,
                 response_information => [],
                 retain_available => true,
-                retry_interval => 30000,
+                retry_interval => infinity,
                 message_expiry_interval => infinity,
                 server_keepalive => disabled,
                 session_expiry_interval => 7200000,

apps/emqx/test/emqx_session_mem_SUITE.erl

@@ -78,7 +78,7 @@ t_session_init(_) ->
     ?assertEqual(0, emqx_session_mem:info(inflight_cnt, Session)),
     ?assertEqual(64, emqx_session_mem:info(inflight_max, Session)),
     ?assertEqual(1, emqx_session_mem:info(next_pkt_id, Session)),
-    ?assertEqual(30000, emqx_session_mem:info(retry_interval, Session)),
+    ?assertEqual(infinity, emqx_session_mem:info(retry_interval, Session)),
     ?assertEqual(0, emqx_mqueue:len(emqx_session_mem:info(mqueue, Session))),
     ?assertEqual(0, emqx_session_mem:info(awaiting_rel_cnt, Session)),
     ?assertEqual(100, emqx_session_mem:info(awaiting_rel_max, Session)),
@@ -95,7 +95,7 @@ t_session_info(_) ->
         #{
             subscriptions := #{},
             upgrade_qos := false,
-            retry_interval := 30000,
+            retry_interval := infinity,
             await_rel_timeout := 300000
         },
         maps:from_list(emqx_session_mem:info(Keys, session()))