Update golang dependencies

vendor/k8s.io/client-go/util/flowcontrol/BUILD

@@ -0,0 +1,34 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = [
+        "backoff_test.go",
+        "throttle_test.go",
+    ],
+    library = ":go_default_library",
+    tags = ["automanaged"],
+    deps = ["//vendor/k8s.io/client-go/util/clock:go_default_library"],
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "backoff.go",
+        "throttle.go",
+    ],
+    tags = ["automanaged"],
+    deps = [
+        "//vendor/github.com/juju/ratelimit:go_default_library",
+        "//vendor/k8s.io/client-go/util/clock:go_default_library",
+        "//vendor/k8s.io/client-go/util/integer:go_default_library",
+    ],
+)