Follow upstream's move of FactoryModule

FactoryModule got moved to extensions in Gerrit in

  cb2845b4f88420628be5ab060f5ec7fb853a8a50

. Hence, we follow the move to allow compilation against
Gerrit master.

Change-Id: I4dad0fc76ddff155f61fe8906208c82046f87c8e

src/test/java/com/googlesource/gerrit/plugins/its/storyboard/StoryboardItsFacadeTest.java

diff --git a/src/test/java/com/googlesource/gerrit/plugins/its/storyboard/StoryboardItsFacadeTest.java b/src/test/java/com/googlesource/gerrit/plugins/its/storyboard/StoryboardItsFacadeTest.java
index 6ca9fa1..a2f687f 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/its/storyboard/StoryboardItsFacadeTest.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/its/storyboard/StoryboardItsFacadeTest.java
@@ -18,7 +18,7 @@
 import org.eclipse.jgit.lib.Config;
 
 import com.google.gerrit.extensions.annotations.PluginName;
-import com.google.gerrit.server.config.FactoryModule;
+import com.google.gerrit.extensions.config.FactoryModule;
 import com.google.gerrit.server.config.GerritServerConfig;
 import com.google.inject.Guice;
 import com.google.inject.Injector;