Adapt to change in Gerrit core

With change I89c0c68bf Response#value() is now throwing Exception which
needs to be handled.

Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: I8742c6ed231dad374192e0bc7002c86aba4cb687

src/test/java/com/google/gerrit/server/restapi/config/PluginManagerTopMenuIT.java

diff --git a/src/test/java/com/google/gerrit/server/restapi/config/PluginManagerTopMenuIT.java b/src/test/java/com/google/gerrit/server/restapi/config/PluginManagerTopMenuIT.java
index 4323d77..7730ef8 100644
--- a/src/test/java/com/google/gerrit/server/restapi/config/PluginManagerTopMenuIT.java
+++ b/src/test/java/com/google/gerrit/server/restapi/config/PluginManagerTopMenuIT.java
@@ -68,7 +68,7 @@
     assertThat(pluginTopMenuEntries()).isEmpty();
   }
 
-  private List<MenuEntry> pluginTopMenuEntries() {
+  private List<MenuEntry> pluginTopMenuEntries() throws Exception {
     List<MenuEntry> topMenuItems = topMenus.apply(new ConfigResource()).value();
     return topMenuItems;
   }