Increase rde package test size

The open source build uses a single shard for the rde package's tests. In order to account for the longer runtime, increase the timeout for this package.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=142261623

javatests/google/registry/rde/BUILD

@@ -53,7 +53,7 @@ java_library(
 
 GenTestRules(
     name = "GeneratedTestRules",
-    default_test_size = "medium",
+    default_test_size = "large",
     test_files = glob(["*Test.java"]),
     deps = [":rde"],
 )