[ObjC] Enable editions conformance tests.

PiperOrigin-RevId: 590328722
diff --git a/conformance/BUILD.bazel b/conformance/BUILD.bazel
index 99827fc..1d9ea15 100644
--- a/conformance/BUILD.bazel
+++ b/conformance/BUILD.bazel
@@ -328,6 +328,8 @@
         ":conformance_objc_proto",
         "//:test_messages_proto2_objc_proto",
         "//:test_messages_proto3_objc_proto",
+        "//src/google/protobuf/editions:test_messages_proto2_editions_objc_proto",
+        "//src/google/protobuf/editions:test_messages_proto3_editions_objc_proto",
     ],
 )