Fix ResaveAllEppResourcesAction to use the tools service

It's provided in ToolsRequestComponent, so it absolutely should be running on
the tools service. This was just a flat-out bug.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=136630743

java/google/registry/tools/server/ResaveAllEppResourcesAction.java

@@ -46,7 +46,7 @@ public class ResaveAllEppResourcesAction implements Runnable {
   public void run() {
     response.sendJavaScriptRedirect(createJobPath(mrRunner
         .setJobName("Re-save all EPP resources")
-        .setModuleName("backend")
+        .setModuleName("tools")
         .runMapOnly(
             new ResaveAllEppResourcesActionMapper(),
             ImmutableList.of(createEntityInput(EppResource.class)))));