Update to gazelle 0.12.0 and run hack/update-bazel.sh

vendor/github.com/coreos/etcd/auth/BUILD

@@ -9,6 +9,7 @@ go_library(
         "simple_token.go",
         "store.go",
     ],
+    importmap = "vendor/github.com/coreos/etcd/auth",
     importpath = "github.com/coreos/etcd/auth",
     visibility = ["//visibility:public"],
     deps = [

vendor/github.com/coreos/etcd/auth/authpb/BUILD

@@ -3,6 +3,7 @@ load("@io_bazel_rules_go//go:def.bzl", "go_library")
 go_library(
     name = "go_default_library",
     srcs = ["auth.pb.go"],
+    importmap = "vendor/github.com/coreos/etcd/auth/authpb",
     importpath = "github.com/coreos/etcd/auth/authpb",
     visibility = ["//visibility:public"],
     deps = ["//vendor/github.com/golang/protobuf/proto:go_default_library"],