Enforce build file formatting in bazel on assemble_cvd/BUILD.bazel

Bug: b/532697459

Author: Databean

base/cvd/cuttlefish/host/commands/assemble_cvd/BUILD.bazel

@@ -1,11 +1,13 @@
 load("@protobuf//bazel:cc_proto_library.bzl", "cc_proto_library")
 load("@protobuf//bazel:proto_library.bzl", "proto_library")
-load("//cuttlefish/bazel:rules.bzl", "COPTS", "cf_cc_binary", "cf_cc_library", "cf_cc_test")
+load("//cuttlefish/bazel:rules.bzl", "COPTS", "cf_build_test", "cf_cc_binary", "cf_cc_library", "cf_cc_test")
 
 package(
     default_visibility = ["//:android_cuttlefish"],
 )
 
+cf_build_test(name = "cf_build_test")
+
 cf_cc_library(
     name = "alloc",
     srcs = ["alloc.cc"],