Adapt bindings for global-refdb API changes

Legacy enforcement rules configuration deprecated:
https://gerrit-review.googlesource.com/c/modules/global-refdb/+/425506

Change-Id: I996ac571e899c6b0080cf73e5e2955cbd94e8ea3
diff --git a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java
index 958f265..963c7a8 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/multisite/validation/ValidationModule.java
@@ -26,9 +26,9 @@
 import com.gerritforge.gerrit.globalrefdb.validation.SharedRefDbRefUpdate;
 import com.gerritforge.gerrit.globalrefdb.validation.SharedRefDbRepository;
 import com.gerritforge.gerrit.globalrefdb.validation.SharedRefLogger;
-import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.CustomSharedRefEnforcementByProject;
-import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.DefaultSharedRefEnforcement;
-import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.SharedRefEnforcement;
+import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.LegacyCustomSharedRefEnforcementByProject;
+import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.LegacyDefaultSharedRefEnforcement;
+import com.gerritforge.gerrit.globalrefdb.validation.dfsrefdb.LegacySharedRefEnforcement;
 import com.google.common.collect.ImmutableSet;
 import com.google.gerrit.extensions.config.FactoryModule;
 import com.google.gerrit.extensions.registration.DynamicSet;
@@ -70,10 +70,12 @@
     install(new RepositoryManagerModule(repoConfig));
 
     if (cfg.getSharedRefDbConfiguration().getSharedRefDb().getEnforcementRules().isEmpty()) {
-      bind(SharedRefEnforcement.class).to(DefaultSharedRefEnforcement.class).in(Scopes.SINGLETON);
+      bind(LegacySharedRefEnforcement.class)
+          .to(LegacyDefaultSharedRefEnforcement.class)
+          .in(Scopes.SINGLETON);
     } else {
-      bind(SharedRefEnforcement.class)
-          .to(CustomSharedRefEnforcementByProject.class)
+      bind(LegacySharedRefEnforcement.class)
+          .to(LegacyCustomSharedRefEnforcementByProject.class)
           .in(Scopes.SINGLETON);
     }