update plugin API versions in tests

mysql-test/r/handlersocket.result

@@ -5,7 +5,7 @@ plugin_version	1.0
 plugin_status	ACTIVE
 plugin_type	DAEMON
 plugin_library	handlersocket.so
-plugin_library_version	1.5
+plugin_library_version	1.6
 plugin_author	higuchi dot akira at dena dot jp
 plugin_description	Direct access into InnoDB
 plugin_license	BSD

mysql-test/r/plugin.result

@@ -15,7 +15,7 @@ PLUGIN_STATUS	ACTIVE
 PLUGIN_TYPE	STORAGE ENGINE
 PLUGIN_TYPE_VERSION	#
 PLUGIN_LIBRARY	ha_example.so
-PLUGIN_LIBRARY_VERSION	1.5
+PLUGIN_LIBRARY_VERSION	1.6
 PLUGIN_AUTHOR	Brian Aker, MySQL AB
 PLUGIN_DESCRIPTION	Example storage engine
 PLUGIN_LICENSE	GPL
@@ -28,7 +28,7 @@ PLUGIN_STATUS	ACTIVE
 PLUGIN_TYPE	DAEMON
 PLUGIN_TYPE_VERSION	#
 PLUGIN_LIBRARY	ha_example.so
-PLUGIN_LIBRARY_VERSION	1.5
+PLUGIN_LIBRARY_VERSION	1.6
 PLUGIN_AUTHOR	Sergei Golubchik
 PLUGIN_DESCRIPTION	Unusable Daemon
 PLUGIN_LICENSE	GPL
@@ -57,7 +57,7 @@ PLUGIN_STATUS	DELETED
 PLUGIN_TYPE	STORAGE ENGINE
 PLUGIN_TYPE_VERSION	#
 PLUGIN_LIBRARY	ha_example.so
-PLUGIN_LIBRARY_VERSION	1.5
+PLUGIN_LIBRARY_VERSION	1.6
 PLUGIN_AUTHOR	Brian Aker, MySQL AB
 PLUGIN_DESCRIPTION	Example storage engine
 PLUGIN_LICENSE	GPL