Update golang.org/x dependencies to their latest tagged versions.
Change-Id: Ifdb28c48f23b927c68daca02b9ebd94a750634ba
Reviewed-on: https://go-review.googlesource.com/c/tools/+/694176
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Gopher Robot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>