Add timing include (#235) (#237)

* Add timing include

Signed-off-by: Pablo Garrido <pablogs9@gmail.com>

* Increase ping timeouts in tests

Signed-off-by: Pablo Garrido <pablogs9@gmail.com>
(cherry picked from commit f2cccfe)

Co-authored-by: Pablo Garrido <pablogs9@gmail.com>

Author: mergify[bot]

rmw_microxrcedds_c/include/rmw_microros/rmw_microros.h

@@ -25,6 +25,7 @@
 #include <rmw_microros/init_options.h>
 #include <rmw_microros/time_sync.h>
 #include <rmw_microros/ping.h>
+#include <rmw_microros/timing.h>
 
 #if defined(RMW_UXRCE_TRANSPORT_UDP) || defined(RMW_UXRCE_TRANSPORT_TCP)
 #include <rmw_microros/discovery.h>

rmw_microxrcedds_c/test/test_rmw.cpp

@@ -61,12 +61,12 @@ TEST(rmw_microxrcedds, agent_ping)
   ASSERT_EQ(rmw_init_options_init(&test_options, rcutils_get_default_allocator()), RMW_RET_OK);
   ASSERT_EQ(rmw_init(&test_options, &test_context), RMW_RET_OK);
 
-  ASSERT_EQ(rmw_uros_ping_agent(100, 1), RMW_RET_OK);
+  ASSERT_EQ(rmw_uros_ping_agent(1000, 1), RMW_RET_OK);
 
   ASSERT_EQ(rmw_init_options_fini(&test_options), RMW_RET_OK);
   ASSERT_EQ(rmw_shutdown(&test_context), RMW_RET_OK);
 
-  ASSERT_EQ(rmw_uros_ping_agent(100, 1), RMW_RET_OK);
+  ASSERT_EQ(rmw_uros_ping_agent(1000, 1), RMW_RET_OK);
 }
 
 /*