Adjust the visibility of this rule, which is needed for the migration of docker_build to rules_docker.

PiperOrigin-RevId: 154431359
diff --git a/tools/build_defs/pkg/BUILD b/tools/build_defs/pkg/BUILD
index f735bdc..d4bcd98 100644
--- a/tools/build_defs/pkg/BUILD
+++ b/tools/build_defs/pkg/BUILD
@@ -16,9 +16,7 @@
     name = "archive",
     srcs = ["archive.py"],
     srcs_version = "PY2AND3",
-    visibility = [
-        "//tools/build_defs/docker:__subpackages__",
-    ],
+    visibility = ["//visibility:public"],
 )
 
 filegroup(